Steel support large nut installation wrench

Abstract

The utility model relates to a steel support large nut installation wrench which comprises a handle, a fixed crescent section, a movable crescent section, a first clamp head and a second clamp head, and the fixed crescent section is connected with one end of the handle; the movable crescent section is hinged to one end of the fixed crescent section, and the movable crescent section is connected with the handle through an elastic piece; the first clamp head is arranged on the fixed crescent section; the second clamp head is arranged on the movable crescent section, and the first clamp head and the second clamp head can penetrate into holes in the side wall of a nut or a nut to be wrenched. Compared with the prior art, the crescent wrench has the advantages that the problem of poor size adaptability of the crescent wrench is effectively solved, bidirectional rotation can be realized, the limitation that the crescent wrench can only rotate in a single direction is changed, the operation is more flexible and convenient, and compared with a thin steel bar, the crescent wrench is stable in structure and cannot be easily deformed or broken due to large thread friction force.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of installation wrench, in particular to a kind of steel support large nut installation wrench. BACKGROUND

[0002] In deep foundation pit engineering, string beam steel truss system has been widely applied. Steel truss effectively enhances the bearing capacity and stability of main support by setting diagonal web member. The connection mode of diagonal web member and main support is fixed by round large nut pin shaft and round large nut, and the side wall of large nut and large nut is provided with hole.

[0003] At present, fine steel bar or crescent wrench is inserted into hole to rotate and tighten nut on construction site. However, both of the two construction methods have many drawbacks. On the one hand, fine steel bar is not specially designed installation construction tool, and it is easy to deform or even break in use due to the large friction between pin shaft and nut, which not only delays construction progress, but also increases construction cost due to frequent replacement of tools, and there is certain safety hazard. On the other hand, crescent wrench has strict requirements on the size of nut, and cannot flexibly adapt to various specifications of nut and nut, which greatly limits its application range in different engineering scenes. In addition, crescent wrench can only rotate in one direction, which is not convenient and efficient in actual operation, reduces construction efficiency, especially in complex construction environment, the limitation is more obvious, which is difficult to meet the increasingly diversified and efficient engineering construction demand. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects of the prior art and provides a steel support large nut installation wrench, which effectively overcomes the poor size adaptability of crescent wrench, can realize bidirectional rotation, changes the limitation that crescent wrench can only rotate in one direction, is more flexible and convenient to operate, and is more stable than fine steel bar, and will not easily deform or break due to large thread friction.

[0005] The purpose of the utility model can be realized by the following technical solutions.

[0006] The utility model provides a steel support large nut installation wrench, which comprises handle, fixed crescent segment, movable crescent segment, first clamp head and second clamp head.

[0007] The fixed crescent segment is connected with one end of the handle.

[0008] The movable crescent segment is hingedly connected with one end of the fixed crescent segment, and the movable crescent segment is connected with the handle through elastic element.

[0009] The first clamp head is arranged on the fixed crescent segment.

[0010] The second clamp head is arranged on the movable crescent segment, and the first clamp head and the second clamp head can penetrate into the hole on the side wall of the nut or the screw cap to be turned.

[0011] Further, the first clamp head and the second clamp head are oppositely arranged.

[0012] Further, a right-angle groove is arranged at the connection between the fixed crescent segment and the handle.

[0013] Further, one end of the movable crescent segment is hinged in the right-angle groove.

[0014] Further, a fixing bolt is arranged through the right-angle groove, and the movable crescent segment is hinged with the fixed crescent segment through the fixing bolt.

[0015] Further, when the movable crescent segment is turned to the maximum turning stroke state, one side of the movable crescent segment abuts against the inner wall of one side of the right-angle groove.

[0016] Further, a turning arm is arranged on the movable crescent segment, and the turning arm is connected with the handle through an elastic member.

[0017] Further, the elastic member is a spring.

[0018] Further, when the movable crescent segment is turned to the maximum turning stroke state, the inner wall of the right-angle groove and the fixing bolt jointly limit the turning of the movable crescent segment.

[0019] Further, when the movable crescent segment is turned outward, the elastic member is compressed until the movable crescent segment is turned to the maximum stroke state.

[0020] When the movable crescent segment is turned inward, the elastic member can be changed from the compressed state to the stretched state.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The first clamp head and the second clamp head in the utility model can be adapted to various specifications of nut and screw cap, effectively overcome the problem of poor size adaptability of crescent wrench, can realize bidirectional rotation, change the limitation that the crescent wrench can only rotate in one direction, operation is more flexible and convenient, compared with the fine steel bar, the utility model is stable in structure, will not be easily deformed or broken due to large thread friction force, greatly improves construction efficiency, reduces construction cost, guarantees construction safety and quality, has strong practicality and popularization value in deep foundation pit engineering and other related fields. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1The utility model discloses a structure schematic drawing of steel support big nut mounting wrench in the utility model;

[0024] Figure 2 The utility model discloses a structure schematic drawing of fixed crescent segment and handle in the utility model;

[0025] Figure 3 The utility model discloses a structure schematic drawing of steel support big nut mounting wrench after arc treatment in the utility model;

[0026] Figure 4 The utility model discloses a schematic drawing of clamping to nut or the nut on in the utility model;

[0027] Figure 5 The utility model discloses a structure schematic drawing of movable crescent segment in the utility model.

[0028] In the drawing,

[0029] 1-handle

[0030] 2-fixed crescent segment

[0031] 3-movable crescent segment

[0032] 4-elastic member

[0033] 5-first clamp head

[0034] 6-second clamp head

[0035] 7-right angle groove

[0036] 8-fixing bolt

[0037] 9-rotating arm

[0038] 10-fixing hole

[0039] 11-rotating hole Specific embodiments

[0040] The utility model will be explained in detail below in combination with the drawings and specific embodiments. The components model, material name, connection structure, control method, algorithm and other features not explicitly stated in the technical scheme are all regarded as the common technical features disclosed in the prior art.

[0041] Embodiment 1

[0042] The embodiment provides a kind of steel support big nut mounting wrench, including handle 1, fixed crescent segment 2, movable crescent segment 3, first clamp head 5, second clamp head 6, wherein specifically referring to Figures 1 to 2 .

[0043] The fixed crescent segment 2 is connected to one end of the handle 1; the movable crescent segment 3 is hinged to one end of the fixed crescent segment 2, and the movable crescent segment 3 is connected to the handle 1 via an elastic member 4. The elastic member 4 is a spring.

[0044] The first clamp head 5 is provided on the fixed crescent segment 2; the second clamp head 6 is provided on the movable crescent segment 3. The first clamp head 5 and the second clamp head 6 can be inserted into the holes on the side wall of the nut or nut to be turned. Figure 4 The first clamp head 5 and the second clamp head 6 are arranged opposite to each other.

[0045] A right angle groove 7 is provided at the connection between the fixed crescent segment 2 and the handle 1. One end of the movable crescent segment 3 is hinged in the right angle groove 7. A fixing bolt 8 is provided through the right angle groove 7, and the movable crescent segment 3 is hinged to the fixed crescent segment 2 via the fixing bolt 8. Figure 5 A fixing hole 10 for installing a fixing bolt 8 is opened at the corresponding position of the right-angle groove 7 of the fixed crescent segment 2, and a rotating hole 11 is opened on the movable crescent segment 3.

[0046] When the movable crescent segment 3 rotates outward to the maximum rotation stroke state, one side of the movable crescent segment 3 abuts against one side inner wall of the right-angle groove 7 .

[0047] The movable crescent segment 3 is equipped with a pivoting arm 9, which is connected to the handle 1 via an elastic member 4. When the movable crescent segment 3 reaches its maximum rotational travel, the inner sidewall of the right-angled slot 7 and the fixing bolt 8 cooperate to limit the rotation of the movable crescent segment 3. When the movable crescent segment 3 rotates outward, the elastic member 4 is compressed until the movable crescent segment 3 reaches its maximum outward travel. When the movable crescent segment 3 rotates inward, the elastic member 4 transitions from a compressed state to a stretched state.

[0048] See also Figure 3 The wrench in the utility model can be processed with arc chamfers, so that it is convenient to use without hurting the hands.

[0049] The utility model discloses a steel support big nut mounting wrench, which comprises a handle, a fixed crescent segment and a movable crescent segment.

[0050] The above description of the embodiments is for facilitating the understanding and use of the utility model by ordinary skilled persons in the art. Those skilled in the art can easily make various modifications to the embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the utility model is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the utility model should be within the protection scope of the utility model.

Claims

1. A steel support large nut installation wrench, characterized in that: The utility model relates to a spanner, which comprises: a handle (1); a fixed crescent segment (2) connected to one end of the handle (1); a movable crescent segment (3) hinged to one end of the fixed crescent segment (2) and connected to the handle (1) through an elastic member (4); a first clamp head (5) arranged on the fixed crescent segment (2); a second clamp head (6) arranged on the movable crescent segment (3), the first clamp head (5) and the second clamp head (6) being capable of penetrating into a hole on the sidewall of a nut or a cap to be turned.

2. A steel support large nut mounting wrench according to claim 1, characterized in that, The first clamp head (5) and the second clamp head (6) are oppositely arranged.

3. A steel support large nut mounting wrench according to claim 1, characterized in that, The fixed crescent segment (2) is provided with a right-angle groove (7) at the connection with the handle (1).

4. A steel support large nut mounting wrench according to claim 3, characterized in that, One end of the movable crescent segment (3) is hinged in the right-angle groove (7).

5. A steel support jumbo according to claim 4, wherein A fixing bolt (8) is arranged through the right-angle groove (7), and the movable crescent segment (3) is hinged to the fixed crescent segment (2) through the fixing bolt (8).

6. A steel support jumbo according to claim 4, wherein When the movable crescent segment (3) is turned to the maximum turning stroke state, one side of the movable crescent segment (3) abuts against the inner wall of one side of the right-angle groove (7).

7. A steel support jumbo according to claim 6, wherein A turning arm (9) is arranged on the movable crescent segment (3), and the turning arm (9) is connected to the handle (1) through the elastic member (4).

8. A steel support jumbo according to claim 7, characterised in that, The elastic member (4) is a spring.

9. A steel support jumbo according to claim 7, wherein In the maximum turning stroke state, the inner wall of the right-angle groove (7) and the fixing bolt (8) jointly limit the turning of the movable crescent segment (3).

10. A steel support jumbo according to claim 7, characterized in that, When the movable crescent segment (3) is turned outward, the elastic member (4) is compressed until the movable crescent segment (3) is turned to the maximum stroke state. When the movable crescent segment (3) is turned inward, the elastic member (4) can be changed from the compressed state to the stretched state.

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