Connecting wrench and frame connecting structure

Abstract

The utility model discloses a connecting wrench and frame connecting structure, through the axial insertion of the insertion rod to the installation hole, then through the rotation of the driving handle 90, limit two frame bodies in the limiting portion, between the frame rod, realize two frame body connection, reverse rotation driving handle realizes the unlocking of two frame bodies, completes frame body connection, installs again to the advertising cloth, realizes the quick connection or disassembly of two frame bodies above all.

Description

Technical Field

[0001] This utility model relates to the field of advertising display frame technology, and in particular to the connecting wrench and frame connecting structure. Background Technology

[0002] In the field of advertising displays, large advertising banners need to be fixed to a frame structure to ensure a good visual display effect. If the entire banner is pre-assembled in the warehouse or production site and then transported to the exhibition site, it will face problems such as inconvenience in handling, high transportation costs, and easy damage. Therefore, the industry generally adopts the on-site assembly method. The specific process is as follows: first, the advertising banner is installed on the frame components, then the assembled frame is transported to the exhibition site, and finally the overall frame is assembled.

[0003] However, the above-mentioned work process has obvious defects: since the advertising cloth has been installed before the frame is spliced, the advertising cloth will cover the connection holes on the frame, which will hinder the alignment and connection between the two frames during on-site splicing, and significantly increase the splicing difficulty.

[0004] In summary, how to achieve rapid connection between the two frameworks has become an urgent problem for researchers in this field. Utility Model Content

[0005] The technical problem to be solved by this utility model is: how to achieve a quick connection between the two frames; To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This utility model is a connecting wrench, comprising: an insertion rod, one end of which extends radially outward to both sides with a limiting portion, and the other end of which is fixed with a drive handle. When the drive handle is rotated circumferentially around the insertion rod, the insertion rod and the limiting portion rotate accordingly.

[0006] Furthermore, extending along the axis of the insertion rod towards the limiting portion, the cross-section of the limiting portion gradually decreases; The limiting part has a bottom surface and a gradually tapering guide outer wall surface, wherein the bottom surface is perpendicular to the outer wall of the insertion rod.

[0007] Furthermore, the connecting wrench has a mounting hole extending along the axis of the insertion rod.

[0008] Furthermore, a reinforcing member is fixedly connected inside the mounting hole.

[0009] Furthermore, a reinforcing member is integrally formed inside the mounting hole.

[0010] Furthermore, the drive handle is provided with an auxiliary hole for inserting an auxiliary rod.

[0011] This utility model also discloses a frame connection structure, characterized in that it includes: a first frame rod and a second frame rod, both of which are connected. When the first frame rod and the second frame rod are connected, they are configured such that: after the connecting wrench passes through the connection of the first frame rod and the second frame rod, the drive handle is rotated so that the limiting part of the connecting wrench abuts against the side of one of the frame rods, thereby locking and limiting the first frame rod and the second frame rod between the limiting part and the drive handle.

[0012] The beneficial effects of this utility model are as follows: This utility model is a connecting wrench and frame connecting structure. The insertion rod is axially inserted into the connecting hole, and then the drive handle is rotated 90° to limit the two frame bodies between the limiting part and the frame rod, thereby connecting the two frame bodies. Rotating the drive handle in the opposite direction unlocks the two frame bodies. After the frame bodies are connected, the advertising cloth can be installed. In summary, it realizes the quick connection or disassembly of the two frame bodies. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure connecting the wrench; Figure 2 This is a structural diagram of the connection to the wrench from another perspective; Figure 3 This is a cross-sectional view of the connecting wrench; Figure 4 This is a cross-sectional view of another type of connecting wrench; Figure 5 It is a diagram showing the connection between the wrench and the two frame rods; Figure 6 This is a diagram showing the connection between the wrench and the two frame rods; In the diagram: 1-Connecting wrench, 11-Insert rod, 111-Mounting hole, 12-Limiting part, 121-Outer wall surface, 122-Bottom surface, 13-Drive handle, 131-Auxiliary hole, 2-Frame rod, 21-Connecting hole, 3-Reinforcing member. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0016] See Figure 1-3 This embodiment is a connecting wrench 1, including: an insertion rod 11, with limiting portions 12 protruding from both the front and rear sides of the left end of the insertion rod 11, the limiting portions 12 protruding from the outer wall of the insertion rod 11, and a driving handle 13 fixed to the right end of the insertion rod 11; see also Figure 4The drive handle 13, insertion rod 11, and limiting part 12 are integrally formed. At this time, the bottom surface 122 of the limiting part 12 can abut against the left side of the left frame rod 2 (first frame rod), and the drive handle 13 can abut against the right side of the right frame rod 2 (second frame rod). The drive handle 13 is set downward, thus connecting the two frame rods 2. When the two frame rods 2 need to be unlocked, the drive handle 13 is rotated 90° around the insertion rod 11 and then lifted. The drive handle 13 rotates to a horizontal position, and the insertion rod 11 and the limiting part 12 rotate accordingly. At this time, the limiting part 12 in the front-to-back direction is adjusted to the up-and-down position, and the limiting part 12 does not abut against the left side of the left frame rod 2. Then, the connecting wrench 1 is pulled out axially to the right to unlock the two frame rods 2.

[0017] In some possible embodiments, the insertion rod 11 extends toward the limiting portion 12 along the axial direction, and the cross-section of the limiting portion 12 gradually decreases; the limiting portion 12 has a bottom surface 122 and a gradually tapering guide outer wall surface 121, wherein the bottom surface 122 is perpendicular to the outer wall of the insertion rod 11. In this embodiment, the portion of the left end of the insertion rod 11 with the limiting part 12 is generally conical in shape. The guide outer wall surface 121 of the limiting part 12 can smoothly pass through the connection hole 21 of the frame body 2. The bottom surface 122 of the limiting part 12 is flat, so that the bottom surface 122 can make face-to-face contact with the left side surface of the left frame rod 2, ensuring the stability of the connection between the two frame rods 2.

[0018] See Figure 3 In some possible embodiments, the insertion rod 11 has a mounting hole 111 for mounting the reinforcing member 3 along its axial direction, and a countersunk hole 112 is provided at one end of the mounting hole 111 near the drive handle 13. In this embodiment, the reinforcing member 3 can be a bolt. The bolt is inserted into the mounting hole 111 and threadedly connected to the mounting hole 111. This arrangement can ensure the rigidity and torque of the insertion rod 11, and ensure that the insertion rod 11 does not break or bend during the process of locking the two frame rods 2. The countersunk hole 112 is used to accommodate the bolt head so that the bolt head does not protrude from the right end of the insertion rod 11.

[0019] See Figure 4 In some possible embodiments, a reinforcing member is integrally formed within the mounting hole; In this embodiment, a reinforcing member is integrally formed inside the mounting hole, thereby increasing the rigidity and torque of the insertion rod 11.

[0020] See Figure 1 , 2 In some possible embodiments, the drive handle 13 is provided with an auxiliary hole 131 for inserting an auxiliary rod; In this embodiment, since the left side of the drive handle 13 abuts against the right side of the right frame rod 2, when a person holds the drive handle 13, the contact area of ​​holding the drive handle 13 is small or the unlocking torque required for the drive handle 13 is large, making it impossible to rotate the drive handle 13. Therefore, the operator inserts an auxiliary rod into the auxiliary hole 131 of the drive handle. Using the lever principle, the inserted rod is used to increase the unlocking torque of the drive handle 13 to achieve the rotation of the drive handle 13. When the drive handle 13 is in the downward position, the auxiliary hole 131 extends horizontally through the drive handle 13 in the front-back direction.

[0021] See Figure 5 , 6 This application also discloses a frame connection structure, including: two parallel left and right frame rods 2, each of which has a through-hole 21. When the two through-holes 21 are at the same height, after the insertion rod 11 and the limiting part 12 pass through the two through-holes 21, the drive handle 13 is rotated to lock and limit the two frame rods 2 between the limiting part 12 and the side of the drive handle 13. In this embodiment, the connecting hole 21 preferably adopts a hole with unequal height and width. The height direction allows the limiting part to enter, and the width direction allows the limiting part to rotate and abut against the side of the frame rod. Therefore, a waist hole is preferred. The waist hole is set vertically. During the process of inserting the insertion rod 11 and the limiting part 12 into the connecting hole 21, the drive handle 13 is oriented horizontally. Then, the drive handle 13 is rotated to face downward, so that the limiting part 12 contacts the end face of the left frame rod 2 to realize the connection between the two frame rods 2. Reversing the drive handle 13 and lifting it up realizes the unlocking between the two frame rods 2.

[0022] In some possible embodiments, the distance H3 between the vertices of the two limiting parts 12 is less than the length H1 of the connecting hole 21; this design facilitates the passing of the limiting part 12 through the connecting hole 21; the distance H3 between the vertices of the two limiting parts 12 is greater than the width H2 of the connecting hole 21; this design allows the limiting part 12 to make surface contact with the frame body 2 after the insertion rod 11 is inserted and rotated; the diameter H4 of the insertion rod 11 is less than the width H2 of the connecting hole 21; this design allows the insertion rod 11 to pass through the mounting hole.

[0023] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A connecting wrench, characterized in that, include: An insertion rod has a limiting portion extending radially outward from one end relative to both sides, and a drive handle fixed to the other end of the insertion rod. When the drive handle is rotated circumferentially around the insertion rod, the insertion rod and the limiting portion rotate accordingly.

2. The connecting wrench according to claim 1, characterized in that, The cross-section of the limiting portion gradually decreases as it extends along the axis of the insertion rod toward the limiting portion. The limiting part has a bottom surface and a gradually tapering guide outer wall surface, wherein the bottom surface is perpendicular to the outer wall of the insertion rod.

3. The connecting wrench according to claim 1, characterized in that, The connecting wrench has a mounting hole extending along the axis of the insertion rod.

4. The connecting wrench according to claim 3, characterized in that, A reinforcing member is fixedly connected inside the mounting hole.

5. The connecting wrench according to claim 3, characterized in that, A reinforcing member is integrally formed inside the mounting hole.

6. The connecting wrench according to claim 1, characterized in that, The drive handle has an auxiliary hole for inserting an auxiliary rod.

7. A frame connection structure, comprising the connection wrench as described in any one of claims 1-5, characterized in that, include: The first frame rod and the second frame rod are both provided with connecting holes. When the first frame rod and the second frame rod are connected, they are configured such that after the connecting wrench passes through the connecting holes of the first frame rod and the second frame rod, the drive handle is rotated so that the limiting part of the connecting wrench abuts against the side of one of the frame rods, thereby locking the first frame rod and the second frame rod between the limiting part and the drive handle.

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