Bolt assembly convenient to adjust

Abstract

The utility model discloses a bolt assembly convenient to adjust, and particularly relates to the field of bolt assemblies, the bolt assembly comprises a rod column, a hexagonal head is fixedly installed at the top of the rod column, a fastening inner screw rod is in threaded connection with the interior of the rod column, the fastening inner screw rod is rotatably connected with the interior of the hexagonal head, and a T-shaped limiting head is fixedly installed at the bottom of the fastening inner screw rod. The outer side of the T-shaped limiting head is sleeved with a transmission cylinder, the transmission cylinder is slidably connected into the rod column, a transverse rod is slidably connected into the transmission cylinder, a sliding groove is formed in the rod column, the transverse rod is slidably connected to the inner side of the sliding groove, and one end of the transverse rod is fixedly installed on the limiting bottom plate. By arranging the fastening inner screw rod and the limiting bottom plate, after the nut is tightened and fixed, the cross rod and the limiting bottom plate are inserted into the inner side of the transmission cylinder, the cross groove head is tightened, and the cross rod and the limiting bottom plate are driven to ascend through the fastening inner screw rod, so that the limiting bottom plate is attached to the nut, and the nut is limited and prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt assemblies, and more specifically, to a conveniently adjustable bolt assembly. Background Art

[0002] A bolt assembly is a mechanical part used for fastening connections, generally including a bolt body and a nut. It has the advantages of reliable connection and easy disassembly and assembly. Moreover, it has a wide variety of varieties and specifications, different performances and uses, and a high degree of standardization, serialization and generalization. It has been widely used in energy, electronics, machinery and other fields. However, the existing bolt assemblies will become loose during long-term use, which will reduce the fastening effect.

[0003] According to the Chinese utility model disclosure CN216478339U, a bolt assembly includes: a bolt body, one end of which is provided with a spherical body; a buckle threadedly connected to the bolt body; a connecting sleeve, a spherical hole matched with the spherical body is provided inside the connecting sleeve, and a rotating clamping portion is provided outside the connecting sleeve. Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects: clamping is achieved by the buckle, and the bolt body and the connecting sleeve are universally rotated by the cooperation of the spherical body and the spherical hole, thereby achieving angle adjustment. However, the bolt assembly with this arrangement will become loose during long-term use, which will lead to a reduction in the tightening effect. Therefore, in view of this problem, how to design a bolt assembly that is easy to adjust has become a problem that we currently need to solve. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a bolt assembly that is easy to adjust. By setting a fastening inner screw and a limiting base plate, after the nut is tightened and fixed, the cross bar and the limiting base plate are inserted into the inner side of the transmission cylinder, and the cross groove head is tightened to drive the cross bar and the limiting base plate to rise by fastening the inner screw, so that the limiting base plate and the nut are fitted together, and then the nut is limited to prevent loosening to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bolt assembly that is easy to adjust, comprising a rod column, a hexagonal head is fixedly installed on the top of the rod column, a fastening inner screw is connected to the internal thread of the rod column, the fastening inner screw is rotatably connected to the inside of the hexagonal head, a T-shaped limit head is fixedly installed on the bottom of the fastening inner screw, a transmission cylinder is sleeved on the outer side of the T-shaped limit head, the transmission cylinder is slidably connected to the inside of the rod column, a cross bar is slidably connected to the inside of the transmission cylinder, a sliding groove is opened inside the rod column, the cross bar is slidably connected to the inner side of the sliding groove, and one end of the cross bar is fixedly installed on the limiting bottom plate.

[0006] In a preferred embodiment, a hexagonal head is provided inside the hexagonal head, and a cross groove head is fixedly installed on the top end of the fastening inner screw.

[0007] In a preferred embodiment, the cross slot head is slidably connected to the inner side of the hexagonal head.

[0008] In a preferred embodiment, the number of the limiting base plates is set to two, and the two limiting base plates are arranged in an axisymmetric manner with respect to the vertical center line of the crossbar.

[0009] In a preferred embodiment, the outer side of the rod column is threadedly connected with a nut, and the interior of the nut is hinged with an extension rod.

[0010] In a preferred embodiment, the width of the slide groove is equal to the inner width of the transmission cylinder, and the maximum width of the limiting bottom plate is smaller than the maximum height of the inner side of the transmission cylinder.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model sets a fastening inner screw and a limiting bottom plate. After the nut is tightened and fixed, the cross bar and the limiting bottom plate are inserted into the inner side of the transmission tube, and the cross groove head is tightened to drive the cross bar and the limiting bottom plate to rise by fastening the inner screw, so that the limiting bottom plate fits the nut, and the cross groove head is tightened, so that the limiting bottom plate limits the nut, thereby preventing the nut from loosening after long-term use;

[0013] 2. The utility model provides an extension rod. When tightening the nut, if the nut is located at a position with a small space such as the back, it is inconvenient to use a wrench to tighten the nut. At this time, the extension rods on both sides can be flipped and the nut can be fixed by pinching the extension rods on both sides, which makes it easy to adjust the position of the nut on the outside of the rod column. After it is tight, it can be tightened again with a wrench. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front structural sectional view of the utility model.

[0015] Figure 2 For this utility model Figure 1 A-section structure enlarged view.

[0016] Figure 3 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 4 For this utility model Figure 3 Enlarged view of the structure of part B.

[0018] The accompanying drawings are marked as follows: 1. rod column; 2. hexagonal head; 3. fastening inner screw; 4. T-shaped limit head; 5. transmission cylinder; 6. cross bar; 7. limit base plate; 8. slide groove; 9. hexagonal head; 10. cross groove head; 11. nut; 12. extension rod. DETAILED DESCRIPTION

[0019] 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 in 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.

[0020] Refer to the instruction manual Figure 1-4 ,like Figure 1 As shown, a conveniently adjustable bolt assembly of an embodiment of the utility model, a hexagonal head 2 is fixedly installed on the top of a rod column 1, a fastening inner screw 3 is connected to the inner thread of the rod column 1, and the fastening inner screw 3 is rotatably connected to the inside of the hexagonal head 2, such as Figure 2 As shown, a T-shaped limit head 4 is fixedly installed at the bottom of the fastening inner screw 3, a transmission cylinder 5 is sleeved on the outer side of the T-shaped limit head 4, the transmission cylinder 5 is slidably connected to the inside of the rod column 1, a cross bar 6 is slidably connected to the inside of the transmission cylinder 5, a slide groove 8 is opened inside the rod column 1, the cross bar 6 is slidably connected to the inner side of the slide groove 8, and one end of the cross bar 6 is fixedly installed on the limit bottom plate 7, as shown in FIG. Figure 1 As shown, a hexagonal head 9 is provided inside the hexagonal head 2, and a cross groove head 10 is fixedly installed on the top end of the inner screw 3.

[0021] It should be noted that, when using the bolt assembly, after the nut 11 is turned to fix it, the cross bar 6 and the limiting bottom plate 7 are placed horizontally and vertically, and inserted into the inner side of the transmission cylinder 5 through the slide groove 8. When the limiting bottom plates 7 on both sides are fully exposed, the limiting bottom plates 7 are turned to make the cross bar 6 and the limiting bottom plates 7 level, as shown in FIG. Figure 2 In the state shown, the cross groove head 10 is rotated to rotate the fastening inner screw 3, so that the T-shaped limit head 4 rotates inside the transmission cylinder 5, while driving the transmission cylinder 5 to rise, thereby driving the cross bar 6 to rise through the transmission cylinder 5, so that the limit base plate 7 fits with the nut 11, and the cross groove head 10 is tightened, so that the limit base plate 7 limits the nut 11 to avoid the nut 11 from loosening after long-term use.

[0022] Further, such as Figure 3 As shown, the cross slot head 10 is slidably connected to the inner side of the hexagonal head 9, the number of the limiting base plates 7 is set to two, and the two limiting base plates 7 are axially symmetrically arranged about the vertical center line of the cross bar 6, as shown in FIG. Figure 4As shown, the outer side of the rod column 1 is threadedly connected with a nut 11, the inner side of the nut 11 is hinged with an extension rod 12, the width of the slide groove 8 is equal to the inner side width of the transmission cylinder 5, and the maximum width of the limiting base plate 7 is less than the maximum height of the inner side of the transmission cylinder 5.

[0023] It should be noted that, when tightening the nut 11, if the nut 11 is located at a position with a small space such as the back side, it is inconvenient to use a wrench to turn the nut 11. At this time, the extension rods 12 on both sides can be flipped, and the hinge points of the extension rods 12 on both sides are set diagonally, so that the extension rods 12 on both sides are on the same line after the flipping is completed. At this time, the extension rods 12 on both sides can be pinched to fix the nut 11, which makes it easier to adjust the position of the nut 11 on the outside of the pole column 1. After it is tight, it can be tightened again with a wrench.

[0024] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0025] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0026] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A conveniently adjustable bolt assembly, comprising a rod column (1), characterized in that: A hexagonal head (2) is fixedly installed on the top of the rod column (1), and a fastening inner screw (3) is connected to the internal thread of the rod column (1). The fastening inner screw (3) is rotatably connected to the inside of the hexagonal head (2). A T-shaped limit head (4) is fixedly installed on the bottom of the fastening inner screw (3). A transmission cylinder (5) is sleeved on the outer side of the T-shaped limit head (4). The transmission cylinder (5) is slidably connected to the inside of the rod column (1). A cross bar (6) is slidably connected to the inside of the transmission cylinder (5). A sliding groove (8) is opened inside the rod column (1). The cross bar (6) is slidably connected to the inner side of the sliding groove (8). One end of the cross bar (6) is fixedly installed on the limit bottom plate (7).

2. The conveniently adjustable bolt assembly according to claim 1, characterized in that: A hexagonal head (9) is provided inside the hexagonal head (2), and a cross slot head (10) is fixedly mounted on the top end of the fastening inner screw (3).

3. The conveniently adjustable bolt assembly according to claim 2, characterized in that: The cross slot head (10) is slidably connected to the inner side of the hexagonal head (9).

4. The conveniently adjustable bolt assembly according to claim 3, characterized in that: The number of the limiting bottom plates (7) is set to two, and the two limiting bottom plates (7) are arranged in an axisymmetric manner with respect to the vertical center line of the cross bar (6).

5. The conveniently adjustable bolt assembly according to claim 4, characterized in that: The outer side of the rod column (1) is threadedly connected to a nut (11), and the interior of the nut (11) is hingedly connected to an extension rod (12).

6. The conveniently adjustable bolt assembly according to claim 5, characterized in that: The width of the slide groove (8) is equal to the inner width of the transmission cylinder (5), and the maximum width of the limiting bottom plate (7) is smaller than the maximum height of the inner side of the transmission cylinder (5).

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