A rotating compression and locking structure

Abstract

The utility model relates to a kind of rotating compression and locking structure, it is characterized by, including: door buckle (1), mounting column (2), locking nut (3), mounting nut (4), rivet (5), mounting nut (4) and locking nut (3) are threadedly connected, and the cavity is formed in both interiors, locking nut (3) top has hole, and cavity is communicated, and mounting column (2) is placed in cavity cavity, from locking nut (3) top hole exposure. The end head exposed by door buckle (1) and mounting column (2) is connected using rivet (5).Mounting nut (4) has threaded hole, and the connecting part of bottom shell is screwed and connected. The limit position of locking nut (3) rotation process adjustment mounting column (2) away from mounting nut (4), to change the compression degree of door buckle (1) extension plane to open-close structure. This rotating compression and locking structure meets narrow space installation, it is easy to operate, supports quick disassembly and reassembly, and can increase compression contact area.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, specifically to a rotating clamping and locking structure, which is particularly suitable for installation environments with limited rotation space. Background Technology

[0002] Opening and closing structures that achieve protective purposes often require repeatable clamping and locking. They need to be opened for inspection and closed for operation. Higher protection levels require a certain clamping force for locking. For example... Figure 1 As shown, the current method of locking the cover of turnout switching equipment in the railway industry mainly involves screwing a screw and nut together to tighten the cover. Usually, a lock lug is reserved on the cover. The lock lug is pressed by the cooperation of the screw and nut, and then a lock is installed by the hinge structure to achieve closed management of the equipment.

[0003] This locking structure often requires a certain amount of operating space. When the installation location is unsuitable, it can cause inconvenience in opening and closing the structure or a reduction in sealing performance. On-site users also have a greater need for a more convenient locking method for the opening and closing structure. This utility model mainly improves the locking method of the opening and closing structure and optimizes the rotation and clamping action of the opening and closing structure under conditions of limited rotation space. Summary of the Invention

[0004] The technical solution of this utility model is as follows: It relates to a rotary pressing and locking structure, which is used to press the opening and closing structure of the bottom shell and the cover, and is rotatably connected to the columnar part on the bottom shell. The opening and closing device is pressed by rotational movement. The structure is characterized by including: a door latch, a mounting post, a locking nut, a mounting nut, and a rivet; the locking nut and the mounting nut are connected by threads to form an internal cavity. The top of the locking nut has a hole leading to the lower cavity. The mounting post is placed in the cavity and protrudes from the top hole of the locking nut. The protruding end of the mounting post is inserted into the opening groove of the door latch, and the rivet is inserted horizontally into the horizontal connection hole of the door latch and the mounting post for riveting. The lower end of the mounting nut has a threaded hole, which is threadedly screwed into the connecting part of the bottom shell. During the rotation of the locking nut, the position of the mounting post is adjusted away from the mounting nut, thereby changing the degree of pressing of the door latch extension plane on the opening and closing structure.

[0005] The door latch is formed by extending a Z-shaped cross section, with the hole located at one end of the Z-shaped extension, and the axis of the hole being parallel to the extension direction.

[0006] The other end of the Z-shaped door latch has a hole in its extended plane. The lock lug on the pressed cover passes through the hole to install a lock and prevent the door latch from rotating.

[0007] The door latch has a protrusion on the extended plane of the Z-shaped middle connecting part. The protrusion is located on the surface that can contact the mounting nut. The mounting nut has a groove on its outer periphery, and the protrusion can be inserted into the groove.

[0008] The mounting column is convex in shape and has a stepped structure. The mounting post has a hole perpendicular to the axis at its small end, and the door latch has a hole at one end. A rivet passes through the two holes to hinge the two together, and the door latch can rotate around the hinge axis.

[0009] The cavity formed by the locking nut and the mounting nut is circular in cross-section perpendicular to the axis of rotation, and the large end of the mounting post can be placed inside the cavity.

[0010] The locking nut has a hole in the center of the unthreaded end, which connects to the other end. The small end of the mounting post can pass through the hole in the locking nut, but the large end cannot.

[0011] The locking nut and the mounting nut have parallel planes on their outer periphery for clamping the locking nut and the mounting nut.

[0012] The screw-in ends of the mounting nut and the locking nut are described, wherein the mounting nut has an internal thread and the locking nut has an external thread, or the mounting nut has an external thread and the locking nut has an internal thread.

[0013] The advantages of this utility model are: it meets the requirements for installation in confined spaces, is easy to operate, and ensures that the fasteners rotate with the unit during isolation and rotational clamping. It is also interchangeable with existing opening and closing structures and provides various forms of clamping structures.

[0014] The present invention will be further described below with reference to the accompanying drawings of the embodiments.

[0015] Figure 1 This is a schematic diagram of the locking method structure of the current mainstream turnout switching equipment; Figure 2 This is a schematic diagram of the locking structure of this utility model; Figure 3 This is a schematic diagram of the installation of this utility model in Embodiment 1; Figure 4 This is a schematic diagram of the door latch of this utility model; Figure 5 This is a schematic diagram of the mounting column of this utility model; Figure 6 This is a schematic diagram of the locking nut of this utility model; Figure 7 This is a schematic diagram of the installation nut of this utility model; Figure 8 This is a structural diagram of the snap-lock assembly of this utility model; Figure 9 This is a schematic diagram of the installation of the snap-lock assembly of this utility model in Embodiment 2; Figure 10 This is a structural diagram of the adjustable snap-lock assembly of this utility model; Figure 11 This is a schematic diagram of the installation of the adjustable snap-lock assembly of this utility model in Embodiment 3; Figure 12 This is a structural diagram of the improved adjustable snap-lock assembly of this utility model; Figure 13 This is a schematic diagram of the installation of the improved adjustable snap-lock assembly of this utility model in Embodiment 4.

[0016] In the diagram: 1. Door latch; 2. Mounting post; 3. Locking nut; 4. Mounting nut; 5. Rivet; 6. Lock lug; 7. Lower lock latch; 8. Hinged bolt; 9. Press-fit; 10. Connecting piece; 11. Hinge shaft; 12. Fastener. Detailed Implementation

[0017] To further illustrate the technical means and effects of this utility model in achieving its intended purpose, the specific implementation methods, structural features and effects of this utility model are described in detail below with reference to the accompanying drawings and embodiments. Example 1

[0018] like Figure 2 , Figure 3 As shown, this utility model relates to a rotating clamping and locking structure, characterized by comprising: a door latch 1, a mounting post 2, a locking nut 3, a mounting nut 4, and a rivet 5; the locking nut 3 and the mounting nut 4 are connected by threads to form an internal cavity, and the top of the locking nut 3 has a hole leading to the lower cavity, the mounting post 2 is placed in the cavity and protrudes from the top hole of the locking nut 3; the protruding end of the mounting post 2 is inserted into the opening groove of the door latch 1, and the rivet 5 is horizontally inserted into the horizontal connecting hole of the door latch 1 and the mounting post 2 for riveting; the lower end of the mounting nut 4 has a threaded hole, which is threadedly engaged with the connecting parts of the bottom shell; during the rotation of the locking nut 3, the position of the mounting post 2 is adjusted away from the mounting nut 4, thereby changing the degree of clamping of the extension plane of the door latch 1 on the opening and closing structure.

[0019] The top of the mounting post 2 of this utility model is connected to the door buckle 1, and the bottom is placed in the cavity formed by the locking nut 3 and the mounting nut 4; one end of the mounting nut 4 is screwed into the locking nut 3, and the other end has an internal thread; it is screwed into the hinge bolt 8 reserved on the housing to press the cover; it cooperates with the lock lug 6 reserved on the box cover to complete the locking of the cover and prevent unauthorized operation.

[0020] like Figure 4 As shown, the door latch 1 is formed by the extension of a Z-shaped cross section, and the hole is located at one end of the Z-shaped extension. The axis of the hole is parallel to the extension direction.

[0021] like Figure 5As shown, the mounting post 2 is T-shaped as a whole. The bottom cylindrical part is inserted into the locking nut 3, and the top flat post is riveted to the door buckle 1. The bottom cylindrical structure is inserted into the inner hole of the locking nut 3, and the top flat round long post extends out from the round hole above the locking nut 3 and is aligned with the round hole at the top of the door buckle 1. The door buckle 1 and the mounting post 2 are fixed by riveting.

[0022] like Figure 6 As shown, the locking nut 3 is a cylindrical hollow cap-shaped structure with an open internal thread at the bottom and an opening at the top for the mounting post 2 to pass through; the hollow cavity has an internally threaded mounting nut 4 for mating.

[0023] like Figure 7 As shown, the mounting nut 4 is a cylindrical boss with a hollow cavity at the top, which matches the structure of the locking nut 3. The two are screwed together and tightened. The bottom cylindrical center has a threaded hole, and the surface has a groove that matches the protrusion of the door latch 1, with a pre-reserved process flat opening. In this embodiment, the elongated hole of the door latch 1 is assembled with the door cover lock nose 6, and the protrusion is engaged with the groove of the mounting nut 4 to form a rotation stop.

[0024] In this structure, the mounting post 2 passes through the locking nut 3, and the door latch 1 is fixed to the mounting post 2 by riveting; the mounting nut 4 and the locking nut 3 are connected as one piece by thread; this cover locking structure can modularly replace the fastening nuts on the original box cover.

[0025] The entire structure increases the force-bearing area of ​​the opening and closing mechanism, and the rotation space is the same as the space required by the original fastening nut; the door latch 1 does not move with the rotation of the mounting nut 4. Example 2

[0026] like Figure 8 , Figure 9 As shown, in addition to the screw-on locking design, the locking method can be changed to a snap-on design, including: snap-on 9, connecting piece 10, and hinge shaft 11. Snap-on 9 is a sheet metal part with a certain thickness, with mounting holes and a contact surface for the lock nose (6). Snap-on 9 mainly serves to contact the lock nose 6 on the cover and increase the contact area. Connecting piece 10 serves to fix the entire machine lock assembly. Connecting piece 10 is fixed to the bottom shell of the box and supports the hinge shaft 11 to rotate. There are two hinge shafts 11 in the machine lock assembly. One is installed on the reserved interface on the bottom shell to fix the machine lock assembly and can also rotate. The other controls the rotation of snap-on 9 and presses the cover when the cover is closed. Snap-on 9 has a reserved mounting hole for installing the machine lock at the lock nose 6 of the cover. Example 3

[0027] Furthermore, by utilizing the existing opening and closing mechanism's mounting and locking interfaces, an adjustable locking position design can be added to the clamping and locking structure. A schematic diagram of the overall machine installation is shown below. Figure 11 As shown.

[0028] like Figure 10 As shown, the mechanism consists of a snap fastener 9, a connecting piece 10, a hinge shaft 11, a hinge bolt 8, and a fastener 12. Its operating principle is basically the same as that of the snap-on type mechanical lock assembly in Embodiment 2. The difference is that the snap fastener 9 can have a certain vertical movement in the connecting piece 10. This amount of movement can be adjusted by the hinge bolt 8 fixed to the hinge shaft 10 that connects the snap fastener 9 and the connecting piece 10, and the fastener 12 that presses the snap fastener 9 on it.

[0029] Furthermore, given the limited operating space of the locking nut 3, the screw-on locking nut 4 structure of Embodiment 2 can be combined with the aforementioned adjustable snap-on machine lock assembly to form an adjustable snap-on machine lock assembly that can both snap onto the machine cover and easily adjust the clamping position, such as... Figure 12 , 13 As shown.

[0030] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A rotary clamping and locking structure, characterized in that it comprises: Door latch (1), mounting post (2), locking nut (3), mounting nut (4), rivet (5); the locking nut (3) and mounting nut (4) are connected by threads to form an internal cavity. There is a hole at the top of the locking nut (3) leading to the lower cavity. The mounting post (2) is placed in the cavity and protrudes from the hole at the top of the locking nut (3). The protruding end of the mounting post (2) is inserted into the opening slot of the door latch (1). The rivet (5) is inserted horizontally into the horizontal connection hole of the door latch (1) and the mounting post (2) for riveting. The lower end of the mounting nut (4) has a threaded hole that is threadedly connected to the connecting parts of the bottom shell. During the rotation of the locking nut (3), the position of the mounting post (2) is adjusted away from the mounting nut (4), thereby changing the degree of pressure of the extension plane of the door latch (1) on the opening and closing structure.

2. The rotary pressing and locking structure according to claim 1, characterized in that: The door latch (1) is formed by extending a Z-shaped cross section, with the hole located at one end of the Z-shaped extension, and the axis of the hole being parallel to the extension direction.

3. The rotary pressing and locking structure according to claim 1, characterized in that: The other end of the door latch (1) has a hole in its extended plane. The lock lug (6) on the pressed cover passes through the hole to install a lock and prevent the door latch (1) from rotating.

4. The rotary pressing and locking structure according to claim 1, characterized in that: The door latch (1) has a boss on the extended plane of the Z-shaped middle connecting part. The boss is located on the surface that can contact the mounting nut (4). The mounting nut (4) has a groove on its outer periphery, and the boss can be inserted into the groove.

5. The rotary pressing and locking structure according to claim 1, characterized in that: The mounting post (2) is convex in shape and has a stepped structure. The small end of the mounting post (2) has a hole perpendicular to the axis. The door latch (1) has a hole at one end. The rivet (5) passes through the two holes to hinge the two together. The door latch (1) can rotate around the hinge axis.

6. The rotary pressing and locking structure according to claim 1, characterized in that: The cavity formed by the locking nut (3) and the mounting nut (4) is circular in cross section perpendicular to the axis of rotation, and the large end of the mounting post (2) can be placed inside the cavity.

7. The rotary pressing and locking structure according to claim 1, characterized in that: The locking nut (3) has a hole in the center of the unthreaded end, which connects to the other end. The small end of the mounting post (2) can pass through the hole of the locking nut (3), but the large end cannot pass through.

8. The rotary pressing and locking structure according to claim 1, characterized in that: The mounting nut (4) and the locking nut (3) are screwed together. The mounting nut (4) has an internal thread and the locking nut (3) has an external thread, or the mounting nut (4) has an external thread and the locking nut (3) has an internal thread.

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