Steel arch hinging device
By designing a steel arch frame hinge device, and utilizing the combination of ratchet, ratchet teeth and elastic units, the problem of the steel arch frame rotating into the tunnel during deployment was solved, ensuring safety and construction efficiency.
Patent Information
- Application Number
- CN202520588479.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-31
AI Technical Summary
During tunnel construction, the lack of a hinged one-way limiting device when the steel arch frame is deployed may cause the arch frame to rotate into the tunnel, posing a risk of hitting workers.
Design a steel arch frame hinge device that ensures the steel arch frame can only rotate in one direction through the cooperation of ratchet, ratchet teeth, elastic unit and limiting member. It includes a first plate and a second plate, the connecting component is a vertical plate, the ratchet and ratchet teeth are adapted, and the reverse rotation is restricted by the limiting member and elastic unit.
This method ensures that the steel arch frame cannot rotate into the tunnel during assembly, guaranteeing the safety of workers, simplifying operation, and improving construction efficiency.
Smart Images
Figure CN223854269U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a tunnel construction technical field especially is related to a steel arch support hinged device. BACKGROUND
[0002] In the tunnel construction process, sometimes the tunnel top needs to be supported to prevent tunnel top collapse. Usually, multiple steel beams are linked into an arc-shaped steel arch support, and multiple such steel arch supports are arranged along the tunnel direction as a support framework.
[0003] In order to facilitate transportation, multiple arch supports are first folded outside the hole, and then an arch support installation machine is used to expand and install the arch supports. When the arch support is expanded, if there is no one-way limiting device, the arch support will rotate towards the tunnel, which may cause an accident of hitting the operator.
[0004] Therefore, a steel arch support hinged device is needed to solve the above technical problems. UTILITY MODEL CONTENTS
[0005] The utility model provides a steel arch support hinged device in view of the technical problems existing in the prior art.
[0006] The technical scheme for solving the above technical problems is as follows: a steel arch support hinged device, comprising a first plate body and a second plate body, the first plate body and the second plate body are both provided with a connecting assembly, one end of the first plate body is fixed with a ratchet wheel, the second plate body is rotatably connected with a ratchet tooth, the first plate body and the second plate body are rotatably connected around the center of the ratchet wheel, the ratchet wheel is matched with the ratchet tooth, and a limiting piece and an elastic unit are connected on the ratchet tooth.
[0007] Preferably, the steel arch support linking device, wherein a round hole is arranged at the center of the ratchet wheel, one end of the second plate body is provided with a shaft hole, and a rotating shaft is inserted into the inside of the round hole and the shaft hole.
[0008] Preferably, the steel arch support linking device, wherein the connecting assembly is a vertical plate, the first plate body and the second plate body are both fixed with a vertical plate, and a clamping groove is arranged on the vertical plate.
[0009] Preferably, the steel arch support linking device, wherein the limiting piece is a limiting bolt, one side of the ratchet tooth is provided with a limiting threaded hole, the limiting bolt is installed in the limiting threaded hole, and the limiting bolt abuts against the vertical plate.
[0010] Preferably, the steel arch support linking device, wherein the elastic unit comprises a guide sleeve fixed on the second plate body, a top column is slidably inserted into the guide sleeve, a spring is sleeved on the outside of the top column, a stop ring is fixed on the end of the top column, and the spring is located between the stop ring and the guide sleeve.
[0011] Preferably, the steel arch linking device, wherein a spherical head is arranged on the blocking ring, and the spherical head abuts against the ratchet.
[0012] Preferably, the steel arch linking device, wherein a plurality of through holes are arranged on the first plate body and the second plate body.
[0013] The beneficial effects of the present application are as follows: the first plate body and the second plate body are connected by the connecting assembly, the first plate body and the second plate body can only rotate in one direction relative to each other through the cooperation of the ratchet wheel, the ratchet, the elastic unit and the limiting piece, so that the steel arch cannot rotate into the tunnel during assembly, thereby ensuring the safety of the operator, and the operation is simple and the construction efficiency is high. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is a schematic diagram of the overall structure of the present application;
[0015] Fig. 2 It is a schematic diagram of the structure of the first plate body in the present application;
[0016] Fig. 3 It is a schematic diagram of the structure of the second plate body in the present application;
[0017] Fig. 4 It is a schematic diagram of the structure of the elastic unit.
[0018] In the drawings, the components represented by each reference numeral are listed as follows:
[0019] 1, first plate body, 2, second plate body, 3, vertical plate, 4, clamping groove, 5, through hole, 6, threaded hole, 7, ratchet wheel, 8, ratchet, 9, elastic unit, 91, top column, 92, guide sleeve, 93, spring, 94, blocking ring, 95, spherical head, 10, limiting bolt, 11, round hole, 12, rotating shaft. DETAILED DESCRIPTION
[0020] The principles and characteristics of the present application are described below in conjunction with the drawings, and the examples are only used to explain the present application and not to limit the scope of the present application.
[0021] For example, Figs. 1-4As shown, a steel arch hinged device, including a first plate body 1, a second plate body 2, the first plate body 1 and the second plate body 2 are rotatably connected. The first plate body 1 and the second plate body 2 are provided with a connecting assembly, the connecting assembly is used for connecting the steel beam. The connecting assembly is a vertical plate 3, the first plate body 1 and the second plate body 2 are fixed with two vertical plates 3, the vertical plate 3 is provided with a clamping groove 4, the clamping groove 4 is used for clamping the steel beam. Further, the screw hole can be provided on the side of the clamping groove 4, the insertion hole is provided on the end of the steel beam, after the steel beam is inserted into the clamping groove 4, the steel beam end is fixed in the clamping groove 4 by the bolt through the screw hole and the insertion hole.
[0022] One end of the first plate body 1 is fixed with a ratchet wheel 7, the second plate body 2 is rotatably connected with a ratchet tooth 8, the first plate body 1 and the second plate body 2 are provided with a threaded hole 6, the ratchet tooth 8 is rotatably installed at the threaded hole 6 through the bolt, and the ratchet tooth 8 is rotatably installed at the threaded hole 6 through the bolt, and the ratchet tooth 8 is rotatably installed at the threaded hole 6 through the bolt. The bearing is installed between the ratchet tooth 8 and the bolt. The first plate body 1 and the second plate body 2 are rotatably connected around the center of the ratchet wheel 7, the ratchet wheel 7 is matched with the ratchet tooth 8, and the ratchet tooth 8 is clamped in the ratchet wheel 7. The center of the ratchet wheel 7 is provided with a circular hole 11, one end of the second plate body 2 is provided with a shaft hole, the inside of the circular hole 11 and the shaft hole is inserted with a rotating shaft 12, the both ends of the rotating shaft 12 is provided with a limiting baffle, preventing the rotating shaft 12 from being pulled out.
[0023] The ratchet tooth 8 is connected with a limiting part and an elastic unit 9, the limiting part is used for limiting the upward rotation of the ratchet tooth 8, and the elastic unit 9 is used for applying upward elastic force to the ratchet tooth 8. The limiting part is a limiting bolt 10, one side of the ratchet tooth 8 is provided with a limiting threaded hole, the limiting bolt 10 is installed in the limiting threaded hole, under the action of the elastic unit 9, the limiting bolt 10 abuts against the vertical plate 3. So as to ensure that the ratchet wheel 7 can only rotate in a single direction, and cannot be reversed.
[0024] The elastic unit includes a guide sleeve 92 fixed on the second plate body 2, a top column 91 is slidably inserted into the guide sleeve 92, a spring 93 is sleeved on the outside of the top column 91, a stop ring 94 is fixed on the end of the top column 91, and the spring 93 is located between the stop ring 94 and the guide sleeve 92. The stop ring 94 is provided with a spherical head 95, and the spherical head 95 abuts against the ratchet tooth 8. The spherical head 95 can push the ratchet tooth 8 upward through the elastic force of the spring 93. When the ratchet wheel 7 rotates clockwise, the ratchet tooth 8 will be pushed downward by a certain amplitude, and when the ratchet tooth 8 misses a tooth on the ratchet wheel 7, the ratchet tooth 8 will be restored to the original position immediately under the action of the spring.
[0025] The first plate body 1 and the second plate body 2 are provided with a plurality of through holes 5. For the first plate body 1 and the second plate body 2, the ratchet wheel and the ratchet tooth are covered in the cover plate, the screw rod is inserted into the through hole 5 and the hole reserved in the cover plate, and the nut is locked and fixed. The first plate body 1 and the second plate body 2 are respectively provided with respective cover plates.
[0026] Working principle: when the device links two steel beams, the clamping groove 4 on one plate body is clamped into the end of the steel beam already installed on the top of the tunnel, then the steel beam not yet installed is clamped into the clamping groove 4 of the other plate body, and the end of the steel beam is fixed, so that the end of the steel beam is fixed with the vertical plate, then the newly connected steel beam is rotated, at this time the first plate body 1 and the second plate body 2 are relatively rotated, the newly connected steel beam is pushed to the top of the tunnel until it is close to the top of the tunnel, because the first plate body 1 and the second plate body 2 can only rotate in one direction, and cannot be reversed, so the newly connected steel beam will be stable at the top of the tunnel. The next steel beam is connected in sequence by the above method, so as to complete the erection of the steel arch frame.
[0027] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, and a specific orientation configuration and operation, therefore, it cannot be understood as a limitation on the present application. In addition, "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.
[0028] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0029] The above describes one embodiment of the present application in detail, but the content described is only the preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made within the scope of the present application should still belong to the patent coverage of the present application.
Claims
1. A steel arch frame hinging device, characterized by: Including first plate body (1), second plate body (2), the first plate body (1), second plate body (2) are all provided with connecting assembly, one end of the first plate body (1) is fixed with ratchet wheel (7), the second plate body (2) is rotatably connected with ratchet tooth (8), the first plate body (1) and the second plate body (2) are rotatably connected around the center of the ratchet wheel (7), the ratchet wheel (7) is adapted with the ratchet tooth (8), the ratchet tooth (8) is connected with limiting piece and elastic unit (9).
2. The steel arch frame hinging device according to claim 1, characterized in that: The center of the ratchet wheel (7) is provided with a round hole (11), one end of the second plate body (2) is provided with a shaft hole, the inside of the round hole (11), shaft hole is inserted with shaft (12) in common.
3. The steel arch frame hinging device of claim 1, wherein: The connecting assembly is vertical plate (3), the first plate body (1), second plate body (2) are all fixed with vertical plate (3), the vertical plate (3) is provided with clamping groove (4).
4. The steel arch frame hinging device according to claim 3, characterized in that: The limiting piece is limiting bolt (10), one side of the ratchet tooth (8) is provided with limiting threaded hole, the limiting bolt (10) is installed in the limiting threaded hole, the limiting bolt (10) is abutted with the vertical plate (3).
5. The steel arch frame hinging device of claim 1, wherein: The elastic unit (9) includes guide sleeve (92) fixed on the second plate body (2), the guide sleeve (92) is slidably inserted with top column (91), the outside of the top column (91) is provided with spring (93), the end of the top column (91) is fixed with baffle ring (94), the spring (93) is located between the baffle ring (94) and the guide sleeve (92).
6. The steel arch frame hinging device according to claim 5, characterized in that: The baffle ring (94) is provided with spherical head (95), the spherical head (95) is abutted with the ratchet tooth (8).
7. The steel arch frame hinging device of claim 1, wherein: The first plate body (1), second plate body (2) are all provided with a plurality of through holes (5).