A connection structure of a large pull rod

Abstract

The utility model discloses a connection structure of a large pull rod, and relates to the technical field of pull rods. The utility model includes a pull rod body, and the two ends of the pull rod body are symmetrically fixedly connected with a connecting seat, and a movable column is movably arranged inside the connecting seat, and one end of the movable column extends to the outside of the connecting seat and is fixedly arranged with a connecting ear. The utility model drives the trapezoidal locking block to move outward along the adjustment slide groove by rotating the second screw rod, and can move the movable column toward the outside of the connecting seat, and adjust the position of the movable column, so that the length of the pull rod can be adjusted to a certain extent according to actual needs, so that it can better achieve smooth connection with the external structure, and there is no need for personnel to expand the connecting ear, which is more convenient. By rotating the first screw rod, the movable column can be driven to move outward, and the length of the pull rod can be adjusted more accurately. At the same time, the connection between the first screw and the movable column can also further improve the connection strength between the movable column and the connecting seat.

Description

Technical Field

[0001] The utility model belongs to the technical field of pull rods, in particular to a connection structure of a large pull rod. Background Art

[0002] A tie rod is a rod-shaped structure used to connect two structures with a certain distance between them. Usually, both ends of the tie rod are fixed with connecting ears for connecting to an external structure. During installation, the connecting ears at the ends of the tie rods are connected to the external connecting structure through a connecting shaft. At present, the connecting ears at the ends of the tie rods on the market are mostly connected to the rod body by welding as a whole, and the position of the connecting ears cannot be adjusted according to needs. When the tie rod structure is slightly shorter, the mounting holes on the connecting ears cannot be aligned with the mounting holes on the external connecting structure during the installation and connection process, and the tie rod cannot be installed smoothly. In view of this, we propose a connection structure for large tie rods. Utility Model Content

[0003] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0004] The utility model is a connection structure of a large pull rod, including a pull rod body, both ends of the pull rod body are symmetrically fixedly connected with a connecting seat, a movable column is movably arranged inside the connecting seat, one end of the movable column extends to the outside of the connecting seat and is fixedly provided with a connecting ear, trapezoidal locking grooves are symmetrically opened on both sides of the movable column, trapezoidal locking blocks are symmetrically and movably connected on both sides of the connecting seat, the front end of the trapezoidal locking block is matched with the trapezoidal locking groove, and second screws are symmetrically rotatably connected to the two sides of the connecting seat through bearings, and one end of the second screw is threaded into the tail end of the trapezoidal locking block.

[0005] Preferably, the interior of the connecting seat is rotatably connected to a first screw via a bearing.

[0006] Preferably, one end of the first screw rod is threaded into the tail end of the movable column, and the other end of the first screw rod is fixedly connected to an adjustment handle.

[0007] Preferably, an avoidance slot is provided on the connecting seat, and the adjusting handle is located in the avoidance slot.

[0008] Preferably, the trapezoidal locking block slides along an adjustment slot provided inside the connecting seat.

[0009] Preferably, the other end of the second screw is fixedly connected to an adjusting head, and an end surface of the adjusting head is provided with a hexagonal groove.

[0010] The utility model has the following beneficial effects:

[0011] The utility model provides a connection structure of a large pull rod, which drives the trapezoidal locking block to move outward along the adjusting slot by rotating the second screw, so that the movable column can be moved toward the outside of the connecting seat, and the position of the movable column can be adjusted, so that the length of the pull rod can be adjusted to a certain extent according to actual needs, so that it can better achieve smooth connection with the external structure; the movable column can be driven to move outward by rotating the first screw, and the length of the pull rod can be adjusted more accurately; at the same time, the connection between the first screw and the movable column can also further improve the connection strength between the movable column and the connecting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 This is a schematic diagram of the overall structure of a connection structure of a large pull rod of the utility model;

[0014] Figure 2 It is a schematic diagram of the internal connection structure of a connection seat and a movable column in a connection structure of a large pull rod of the utility model;

[0015] Figure 3 A connection structure of a large pull rod of the utility model Figure 2 A magnified view of the structure in the middle.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0017] 1. Pull rod body; 2. Connecting seat; 21. Avoidance notch; 22. Adjustment slide; 3. Movable column; 31. Connecting ear; 32. Trapezoidal locking groove; 4. First screw; 41. Adjustment handle; 5. Trapezoidal locking block; 6. Second screw; 61. Adjustment head. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 As shown, the utility model provides a technical solution:

[0020] The cam 32 is a kind of symmetrical and fixed structure which is convenient for use in a wide range of applications. The cam 32 is a kind of symmetrical and fixed structure which is convenient for use in a wide range of applications. The cam 32 is a kind of symmetrical and fixed structure which is convenient for use in a wide range of applications. The cam 32 is a kind of symmetrical and fixed structure which is convenient for use in a wide range of applications. One end is fixedly connected with an adjusting head 61, and an inner hexagonal groove is provided on the end surface of the adjusting head 61. When installing and connecting the pull rod, the connecting ear 31 at one end can be connected to the external structure first, and then the connecting ear 31 at the other end can be connected to the corresponding external connecting structure. When the length of the pull rod is slightly smaller and the connecting hole of the connecting ear 31 cannot be aligned with the connecting hole of the external structure, the inner hexagonal wrench can be used to rotate the adjusting head 61 counterclockwise to drive the second screw 6 to rotate, and the rotation of the second screw 6 can drive the trapezoidal locking The block 5 moves outward along the adjusting slot 22. In the same way, the two trapezoidal locking blocks 5 are moved outward to the outermost side. Then, the movable column 3 is pulled outward to align the mounting hole on the connecting ear 31 with the connecting hole of the external structure. Then, the adjusting head 61 is rotated in the opposite direction to drive the second screw 6 to rotate, so that the trapezoidal locking block 5 moves inward and the inclined surfaces of the end heads of the two trapezoidal locking blocks 5 are both in contact with the inclined surfaces of the trapezoidal locking grooves 32. The movable column 3 can be locked, thereby completing the rapid adjustment of the pull rod length.

[0021] Embodiment 2: The difference between this embodiment and embodiment 1 lies in that, the interior of the connecting seat 2 is rotatably connected with a first screw rod 4 via a bearing, one end of the first screw rod 4 is threaded into the tail end of the movable column 3, and the other end of the first screw rod 4 is fixedly connected with an adjusting handle 41. An avoidance slot 21 is provided on the connecting seat 2, and the adjusting handle 41 is located in the avoidance slot 21. By rotating the first screw rod 4, the movable column 3 can be driven to move outward, so that the length of the pull rod can be more accurately adjusted. At the same time, the connection between the first screw rod 4 and the movable column 3 can also further improve the connection strength between the movable column 3 and the connecting seat 2. When adjusting the length of the pull rod, after the trapezoidal locking block 5 is moved to the outermost side, the adjusting handle 41 can be manually turned clockwise to drive the first screw rod 4 to rotate. The rotation of the first screw rod 4 can drive the movable column 3 to move outward, thereby enabling the length of the pull rod to be more accurately adjusted.

[0022] Working principle: When using, when installing and connecting the pull rod, you can first connect the connecting ear 31 at one end to the external structure, and then connect the connecting ear 31 at the other end to the corresponding external connecting structure. When the length of the pull rod is slightly smaller and the connecting hole of the connecting ear 31 cannot be aligned with the connecting hole of the external structure, you can use the hexagonal wrench to rotate the adjusting head 61 counterclockwise to drive the second screw 6 to rotate. The rotation of the second screw 6 can drive the trapezoidal locking block 5 to move outward along the adjusting slot 22. In the same way, move the two trapezoidal locking blocks 5 outward to the outermost side, and then pull the movable column 3 outward to connect the connecting ear 31. The mounting hole on it is aligned with the connecting hole of the external structure, and then the adjusting head 61 is rotated in the opposite direction to drive the second screw 6 to rotate, so that the trapezoidal locking block 5 moves inward, and the inclined surfaces of the end heads of the two trapezoidal locking blocks 5 are all in contact with the inclined surfaces of the trapezoidal locking grooves 32, so that the movable column 3 can be locked, thereby being able to complete the rapid adjustment of the length of the pull rod. When adjusting the length of the pull rod, after the trapezoidal locking block 5 is moved to the outermost side, the adjusting handle 41 can be manually turned clockwise to drive the first screw 4 to rotate. The rotation of the first screw 4 can drive the movable column 3 to move outward, thereby being able to more accurately adjust the length of the pull rod.

[0023] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0024] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments and any equivalent replacement of some of the technical features therein are within the protection scope of the present invention.

Claims

1. A connection structure of a large pull rod, comprising a pull rod body (1), characterized in that: The two ends of the pull rod body (1) are symmetrically fixedly connected with a connecting seat (2), and a movable column (3) is movably arranged inside the connecting seat (2). One end of the movable column (3) extends to the outside of the connecting seat (2) and is fixedly provided with a connecting ear (31). Trapezoidal locking grooves (32) are symmetrically opened on both sides of the movable column (3). Trapezoidal locking blocks (5) are symmetrically and movably connected on both sides of the connecting seat (2), and the front end of the trapezoidal locking block (5) is matched and connected with the trapezoidal locking groove (32). The two sides of the connecting seat (2) are symmetrically rotatably connected with a second screw rod (6) through bearings, and one end of the second screw rod (6) is screwed into the tail end of the trapezoidal locking block (5).

2. A large pull rod connection structure according to claim 1, characterized in that: The interior of the connecting seat (2) is rotatably connected to a first screw rod (4) via a bearing.

3. A large pull rod connection structure according to claim 2, characterized in that: One end of the first screw rod (4) is threadedly screwed into the tail end of the movable column (3), and the other end of the first screw rod (4) is fixedly connected to an adjustment handle (41).

4. A large pull rod connection structure according to claim 3, characterized in that: The connecting seat (2) is provided with an avoidance notch (21), and the adjustment handle (41) is located in the avoidance notch (21).

5. The connection structure of a large pull rod according to claim 1, characterized in that: The trapezoidal locking block (5) slides along an adjustment sliding groove (22) provided inside the connecting seat (2).

6. A large pull rod connection structure according to claim 1, characterized in that: The other end of the second screw rod (6) is fixedly connected to an adjusting head (61), and an inner hexagonal groove is provided on the end surface of the adjusting head (61).

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