Shield segment bolt torque detection device

Abstract

A shield segment bolt torque detection device belongs to the technical field of bolt torque detection and comprises a detection device body, an input shaft of the detection device body is connected with a ratchet handle, the top of a shell of the detection device body is rotatably provided with an annular handrail, the bottom of the shell of the detection device body is connected with a fixed arm, and the fixed arm is provided with a counter-force table. The whole counter-force table is of a long structure, one side of the counter-force table protrudes and extends towards the outer side of the counter-force table, and the protruding side is provided with an inclined face. The shield segment bolt torque detection device is reasonable in design, ingenious in structure, convenient to operate, high in adaptability, capable of acting on arc-shaped concrete segment surfaces of various angles, capable of improving working efficiency and accuracy of detection data and suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt torque detection, in particular to a shield segment bolt torque detection device. Background Art

[0002] Currently, during the construction of ultra-large diameter shield tunnels, after the segments in the shield tunnel are assembled, torque testing tools are needed to test the bolts between the segments. This is to check whether the bolt torque value meets the design requirements. At present, the torque testing tools commonly used by workers are generally torque wrenches. Conventional torque wrenches are large in size and weight, making them inconvenient to carry and operate, and usually require five people to cooperate in the testing. When testing the torque of the specific segment bolts, conventional torque wrenches are limited by the small space and variable operating position angles. The testing process is relatively cumbersome and difficult to operate. Not only is the work efficiency low, but it is also difficult to ensure the accuracy of the test data, and the practicality is poor.

[0003] The Chinese patent number is CN202020131344.7, which discloses a torque detection device, which includes a housing, an input shaft, a reduction mechanism, an outer sleeve and an inner sleeve. The input shaft is installed in the housing and connected to the inner sleeve through the reduction mechanism. A reaction arm is fixed on the outer sleeve, the outer sleeve is connected to the housing, a dial is fixed on the inner sleeve, and a pointer matching the dial is provided on the outer sleeve.

[0004] Although the above-mentioned torque detection device has the advantages of being portable and easy to operate, it still has the following shortcomings during actual use: in the construction of ultra-large diameter shield tunnels, the surface of the concrete segments is an arc-shaped surface at various angles. The above-mentioned torque detection device has a single operating angle and poor adaptability. It is difficult to adapt to the arc-shaped concrete segment surfaces at various angles. Not only can it not improve work efficiency, but it is also difficult to ensure the accuracy of the detection data. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art, such as poor adaptability and difficulty in ensuring detection accuracy, and to provide a shield segment bolt torque detection device with reasonable design, ingenious structure, easy operation, high adaptability, and the ability to act on the surfaces of curved concrete segments at various angles. It can not only improve work efficiency, but also improve the accuracy of detection data, and is suitable for promotion.

[0006] The utility model is realized through the following technical scheme: a shield segment bolt torque detection device, including a detection device body, the input shaft of the detection device body is connected to the ratchet handle, the top of the detection device body shell is rotatably provided with an annular handrail, the bottom of the detection device body shell is connected to a fixed arm, and the fixed arm is provided with a reaction platform; the reaction platform is an elongated structure as a whole, one side of the reaction platform protrudes and extends toward its outer side, and the protruding side is provided with an inclined surface.

[0007] A further improvement of the present invention is that a connecting groove extending toward the other end of the reaction platform is opened at one end of the reaction platform, the reaction platform is inserted into the fixed arm through the connecting groove, and the reaction platform and the fixed arm are connected by a latch mechanism, thereby forming a detachable connection structure.

[0008] A further improvement of the present invention is that the latch mechanism includes a pin shaft, a baffle is provided on the top end of the pin shaft, and a fixing screw is threaded on the bottom end of the pin shaft; a pin hole A is provided on the fixed arm, and a pin hole B corresponding to the pin hole A is provided on the reaction table. When the reaction table is plugged into the fixed arm, the pin shaft is inserted into the pin hole A and the pin hole B, and the position is fixed by a fixing screw and a screw washer, thereby fixing the reaction table to the fixed arm.

[0009] A further improvement of the present invention is that the end of the reaction platform close to the detection device body shell is provided with an arc surface corresponding to the shell shape, and the end of the reaction platform away from the detection device body shell is rounded.

[0010] A further improvement of the present invention is that the side of the reaction platform away from its inclined surface is an open structure, so that the connecting groove can form a semi-open groove structure; a fixed column is provided at the end of the connecting groove away from the detection device body, and an arc-shaped slot corresponding to the fixed column is provided at the end of the fixed arm away from the detection device body.

[0011] A further improvement of the present invention is that an annular mounting groove is provided on the top of the detection device body shell, a connecting bearing is provided inside the annular mounting groove, and the outer ring of the connecting bearing is connected to the annular handrail.

[0012] A further improvement of the present invention is that the ratchet handle is detachably connected to the input shaft of the detection device body by means of a screw connection.

[0013] From the above technical solutions, it can be seen that the beneficial effects of the present invention are: the design of the device is reasonable, the overall structure is ingenious, and through the design of the reaction platform, it can adapt to the surface of curved concrete segments at various angles. It has high adaptability and is easy to operate, which not only improves work efficiency, but also improves the accuracy of detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the detection device body, the annular handrail and the reaction platform in a specific embodiment of the present utility model.

[0017] Figure 3 It is an exploded view of the detection device body and the curved handrail according to a specific embodiment of the present utility model.

[0018] Figure 4 It is a top view of the reaction platform of a specific embodiment of the utility model.

[0019] Figure 5 It is a bottom view of the reaction platform of a specific embodiment of the utility model.

[0020] Figure 6 It is a side view of a reaction platform according to a specific embodiment of the present invention.

[0021] Figure 7 It is a structural schematic diagram of a fixed arm of a specific embodiment of the utility model.

[0022] Figure 8 It is a structural schematic diagram of the latch mechanism of a specific embodiment of the utility model.

[0023] 1. Detection device body; 101. Annular mounting groove; 2. Ratchet handle; 3. Connecting bearing; 4. Annular handrail; 5. Fixed arm; 501. Pin hole A; 502. Arc-shaped slot; 6. Reaction platform; 601. Inclined surface; 602. Connecting groove; 603. Pin hole B; 7. Latch mechanism; 701. Pin shaft; 702. Baffle; 703. Fixing screw; 8. Fixing column. DETAILED DESCRIPTION

[0024] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0025] Please refer to the attached Figure 1-8 , combined with a specific embodiment, it is explained as follows: the present invention describes a shield segment bolt torque detection device, comprising a detection device body 1. Combined with the prior art, the specific structure of the detection device body 1 can refer to the existing torque detection device; the input shaft of the detection device body 1 is detachably connected to a ratchet handle 2 by a screw connection, the top of the detection device body 1 shell is rotatably provided with an annular handrail 4, the bottom of the detection device body 1 shell is connected to a fixed arm 5, and the fixed arm 5 is provided with a reaction platform 6; the reaction platform 6 is an elongated structure as a whole, one side of the reaction platform 6 protrudes and extends toward its outer side, and this protruding side is provided with an inclined surface 601. The design of the above-mentioned reaction platform 6 can better adapt to the surface of curved concrete segments at various angles, reducing the difficulty of operation.

[0026] Specifically, one end of the reaction platform 6 is provided with a connection slot 602 extending toward the other end. The reaction platform 6 is inserted into the fixed arm 5 via the connection slot 602. The reaction platform 6 and the fixed arm 5 are connected by a latch mechanism 7, thereby forming a detachable connection structure. This design allows workers to quickly install and remove the reaction platform 6. It also enables "double-sided" installation of the reaction platform 6. That is, workers can choose the orientation of the top and bottom surfaces of the reaction platform 6 according to actual operating conditions, further enhancing the adaptability of the device.

[0027] Specifically, the latch mechanism 7 includes a pin 701, a baffle 702 disposed at the top end of the pin 701, and a fixing screw 703 threadedly connected to the bottom end of the pin 701. A pin hole A501 is formed on the fixed arm 5, and a pin hole B603 corresponding to the pin hole A501 is formed on the reaction platform 6. When the reaction platform 6 is plugged into the fixed arm 5, the pin 701 is inserted into the pin hole A501 and the pin hole B603, and is fixed in position by the fixing screw 703 and the screw washer, thereby fixing the reaction platform 6 to the fixed arm 5. The design of the latch mechanism 7 has a simple overall structure, is easy to operate, and is convenient.

[0028] The working principle of the present invention: In combination with the existing torque detection device, the staff first aligns the bottom of the detection device body 1 with the pipe segment bolt and connects them tightly, and then presses the reaction platform 6 tightly against the concrete pipe segment. Specifically: according to the actual operation requirements, the staff can choose the specific installation form of the reaction platform 6, that is, choose the orientation of the top and bottom surfaces of the reaction platform 6 to adapt to the curved concrete pipe segment surface of various angles. After the above operations are completed, the staff turns on the power of the detection device body 1 and resets the torque value, and then adjusts the ratchet handle 2 and the reversing dial ring of the detection device body 1 to the tightening mode. Finally, it is assisted by the annular handrail 4, and the ratchet handle 2 is rotated slowly and evenly to gradually increase the force. When the ratchet handle 2 is forced twice in a row and the value on the digital display screen of the detection device body 1 does not change, the force is stopped. At this time, the value is the final tightening torque of the bolt, and it is recorded in time, and the detection operation is completed.

[0029] In one embodiment, the end of the reaction platform 6 closest to the housing of the detection device body 1 is provided with a curved surface corresponding to the housing's outer shape, while the end of the reaction platform 6 away from the housing of the detection device body 1 is rounded. The curved surface design improves the stability between the reaction platform 6 and the housing of the detection device body 1; at the same time, the rounded corner design prevents the reaction platform 6 from damaging the surface of the pipe segment.

[0030] In one embodiment, the side of the reaction platform 6 away from its inclined surface 601 is open, allowing the connecting groove 602 to form a semi-open groove structure. A fixing post 8 is provided within the connecting groove 602 at the end away from the detection device body 1, and an arc-shaped retaining groove 502 corresponding to the fixing post 8 is provided at the end of the fixed arm 5 away from the detection device body 1. This semi-open groove design facilitates the installation and removal of the reaction platform 6. Furthermore, the design of the fixing post 8 and the arc-shaped retaining groove 502 further enhances the stability between the fixed arm 5 and the reaction platform 6.

[0031] In one embodiment, an annular mounting groove 101 is provided on the top of the housing of the detection device body 1. A connecting bearing 3 is disposed within the annular mounting groove 101. The outer ring of the connecting bearing 3 is connected to the annular handrail 4. This design can reduce the difficulty of installing the annular handrail 4 and facilitate assembly.

[0032] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0033] The terms "upper," "lower," "outer," "inner," and the like, if used in the specification and claims of the present invention and the accompanying drawings, are used to distinguish relative positions and do not necessarily define them. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0034] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A shield segment bolt torque detection device, comprising a detection device body (1), characterized in that: The input shaft of the detection device body (1) is connected to a ratchet handle (2), the top of the detection device body (1) shell is rotatably provided with an annular handrail (4), the bottom of the detection device body (1) shell is connected to a fixed arm (5), and the fixed arm (5) is provided with a reaction platform (6); the reaction platform (6) is an elongated structure as a whole, one side of the reaction platform (6) protrudes and extends toward the outside thereof, and the protruding side is provided with an inclined surface (601).

2. A shield segment bolt torque detection device according to claim 1, characterized in that: One end of the reaction platform (6) is provided with a connection groove (602) extending toward the other end thereof, and the reaction platform (6) is inserted into the fixed arm (5) through the connection groove (602), and the reaction platform (6) and the fixed arm (5) are connected via a latch mechanism (7), thereby forming a detachable connection structure.

3. A shield segment bolt torque detection device according to claim 2, characterized in that: The latch mechanism (7) includes a pin shaft (701), a baffle (702) is provided at the top end of the pin shaft (701), and a fixing screw (703) is screwed to the bottom end of the pin shaft (701); a pin hole A (501) is provided on the fixed arm (5), and a pin hole B (603) corresponding to the pin hole A (501) is provided on the reaction platform (6); when the reaction platform (6) is plugged into the fixed arm (5), the pin shaft (701) is inserted into the pin hole A (501) and the pin hole B (603), and is fixed in position by the fixing screw (703) and the screw washer, thereby fixing the reaction platform (6) to the fixed arm (5).

4. A shield segment bolt torque detection device according to claim 3, characterized in that: An end of the reaction platform (6) close to the shell of the detection device body (1) is provided with an arc surface corresponding to the outer shape of the shell, and an end of the reaction platform (6) away from the shell of the detection device body (1) is rounded.

5. The shield segment bolt torque detection device according to claim 4, characterized in that: The side of the reaction platform (6) away from the inclined surface (601) thereof is an open structure, so that the connecting groove (602) can form a semi-open groove structure; a fixing column (8) is provided inside the connecting groove (602) at the end away from the detection device body (1), and an arc-shaped slot (502) corresponding to the fixing column (8) is provided at the end of the fixing arm (5) away from the detection device body (1).

6. The shield segment bolt torque detection device according to claim 1, characterized in that: An annular mounting groove (101) is provided on the top of the detection device body (1) housing, a connecting bearing (3) is provided inside the annular mounting groove (101), and an outer ring of the connecting bearing (3) is connected to the annular handrail (4).

7. The shield segment bolt torque detection device according to claim 1, characterized in that: The ratchet handle (2) is detachably connected to the input shaft of the detection device body (1) by means of a screw connection.

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