Expansion bolt for fixing new energy battery

Abstract

The utility model relates to the technical field of expansion bolts, in particular to an expansion bolt for fixing a new energy battery, which comprises a bolt, the outer wall of the bolt is rotatably connected with a plurality of screw rods through a plurality of bearings, the outer wall of each screw rod is in threaded connection with a fixing cylinder, the outer wall of each fixing cylinder is fixedly sleeved with a flat plate, and the flat plate is in threaded connection with the screw rods. A limiting assembly is arranged on the side, close to the bolt, of the flat plate, a fixing plate is fixedly connected to the bottom end of the bolt, a fastening assembly is arranged at the top end of the fixing plate, a nut is arranged at the top end of the fastening assembly, the outer wall of the bolt is sleeved with the nut, and the outer wall of the bolt is slidably sleeved with an air bag. The expansion bolt for fixing the new energy battery solves the problems that in the actual using process of an expansion bolt, the size of a hexagonal nut of a tightening screw cannot be adjusted, so that only one type of wrench can be used for disassembly and assembly in the disassembly and assembly process, and the flexibility is limited in the using process.

Description

TECHNICAL FIELD

[0001] The utility model relates to expansion bolt technical field, concretely is a kind of expansion bolt for new energy battery fixation. BACKGROUND

[0002] Currently, in certain equipment installation process, the equipment body or other structural accessories need to be directly contacted and connected with ground or wall, and fixed on the ground or wall. The usual connection method is to pre-drill holes on the ground or wall, then put the shell and expansion head of expansion bolt, and then fix with screw rod and gasket.

[0003] The utility model discloses an expansion bolt shell, which is provided with a protruding structural member on the outer surface of the expansion bolt shell. Correspondingly, the utility model discloses an expansion bolt, which comprises an expansion bolt shell, a screw rod and an expansion head. The screw rod is threadedly connected with the expansion head inside the expansion bolt shell. In particular, the outer surface of the expansion bolt shell is provided with a protruding structural member. The protruding structural member plays a limiting role in the installation of the expansion bolt shell, and fixes the expansion bolt shell during installation, thereby solving the problem of rotation of the expansion bolt shell.

[0004] The expansion bolt in the above patent cannot adjust the size of the tightened screw rod hexagonal nut in actual use, so that only one type of wrench can be used for disassembly and assembly, and the flexibility in use is limited. To solve this problem, the utility model provides an expansion bolt for new energy battery fixation. UTILITY MODEL CONTENTS

[0005] The utility model discloses an expansion bolt for new energy battery fixation, which solves the problems in the background art. To achieve the above object, the utility model provides the following technical scheme: an expansion bolt for new energy battery fixation, comprising a bolt, a plurality of lead screws are rotatably connected to the outer wall of the bolt through a plurality of bearings, a fixed cylinder is screwed to the outer wall of each lead screw, a flat plate is fixedly sleeved to the outer wall of each fixed cylinder, a limiting assembly is arranged on the side of the flat plate close to the bolt, a fixed plate is fixedly connected to the bottom end of the bolt, a fastening assembly is arranged at the top end of the fixed plate, a nut is arranged at the top end of the fastening assembly, the nut is sleeved to the outer wall of the bolt, a gas bag is slidably sleeved to the outer wall of the bolt, the gas bag is fixedly connected to the top end of the nut, a disc is arranged at the top end of the gas bag, and the disc is slidably sleeved to the outside of the bolt.

[0006] Preferably, a plurality of anti-skid convex rods are arranged on the outer wall of the gas bag.

[0007] Preferably, the screw rod is provided with a knob at the end away from the bolt.

[0008] Preferably, the fastening assembly comprises a spring, the spring is sleeved on the outer wall of the bolt, and the upper and lower ends of the spring are fixedly connected with the nut and the fixed plate respectively.

[0009] Preferably, the limiting assembly comprises a telescopic cylinder, a telescopic rod and connecting assemblies, the telescopic cylinder is arranged on the side of the flat plate close to the bolt, one end of the telescopic rod is slidably inserted into the inner cavity of the telescopic cylinder, the other end of the telescopic rod is fixedly connected with the bolt, and the two connecting assemblies are arranged on the inner wall of the telescopic cylinder and are fixedly connected with the outer wall of the telescopic rod.

[0010] Preferably, the connecting assembly comprises a connecting groove and a connecting block, the connecting groove is arranged on the inner wall of the telescopic cylinder, and the outer wall of the connecting block is slidably embedded in the inner cavity of the connecting groove and is fixedly connected with the outer wall of the telescopic rod.

[0011] Preferably, the inner cavity of the connecting groove and the outer wall of the connecting block are matched and are dovetail-shaped.

[0012] Preferably, the outer wall of the knob and the side of the flat plate away from the bolt are both provided with a plurality of anti-skid ribs.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. By arranging the spring, the distance between the fixed plate and the nut is increased after the bolt is tightened, so that the spring is pulled and elastically deformed, thereby generating a corresponding pulling force. Under the action of the elastic force of the spring, the friction between the outer wall threads of the bolt and the inner wall threads of the nut is increased, thereby improving the fastening effect and avoiding loosening.

[0015] 2. In the process of rotating the bolt, the distance between the nut and the disc is reduced, thereby compressing the air bag and making the air bag expand in the inner cavity of the drill hole, so that the device can realize the fixing effect of its application. Meanwhile, the air bag can be elastically deformed, thereby making the fastener reusable. By arranging the anti-skid convex rods, the roughness of the outer surface of the air bag is improved, thereby improving the friction between the outer surface of the air bag and the drill hole and improving the fixing effect.

[0016] 3, by rotating the knob, the knob drives the screw rod to rotate, because the screw rod is screwed in the inner cavity of the fixed cylinder, and the fixed cylinder drives the flat plate to slide under the limiting action of the limiting assembly when the screw rod rotates, and the distance between the flat plate and the bolt is adjusted, so that the device can be fastened by different types of wrenches, improving the flexibility of the device in use, solving the problem that the expansion bolt cannot adjust the size of the tightened screw rod hexagonal nut in the actual use process, resulting in that only one type of wrench can be used for disassembly in the disassembly process, and the flexibility is limited in use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is a front view of the telescopic cylinder of the utility model;

[0019] Figure 3 It is a structure schematic view of the air bag of the utility model;

[0020] Figure 4 It is an enlarged view of A of the utility model; Figure 1

[0021] Figure 5 It is a structure schematic view of the connecting groove of the utility model.

[0022] In the drawing: 1, bolt; 2, fixed plate; 3, nut; 4, disc; 5, air bag; 6, anti-skid convex rod; 7, spring; 8, screw rod; 9, fixed cylinder; 10, flat plate; 11, knob; 12, telescopic cylinder; 13, telescopic rod; 14, connecting groove; 15, connecting block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1 to 5 ​The utility model provides a technical scheme: a new energy battery fixed expansion bolt, including bolt 1, the outer wall of bolt 1 is connected with a plurality of lead screws 8 through a plurality of bearings rotation, the outer wall of every lead screw 8 is all screwed with fixed cylinder 9, the outer wall of every fixed cylinder 9 is all fixedly sleeved with flat plate 10, the side of flat plate 10 close to bolt 1 is provided with limiting assembly, through rotating knob 11, make knob 11 drive lead screw 8 rotate, because lead screw 8 is screwed in the inner chamber of fixed cylinder 9, further can make lead screw 8 rotate when make fixed cylinder 9 drive flat plate 10 slide under the limiting action of limiting assembly, further make the distance of flat plate 10 relative to bolt 1 adjust, to make the device can be fastened by different models of wrench, improved the flexibility of the device when using, solved the expansion bolt 1 in the actual use process cannot adjust the size of the hexagonal nut of tightening screw rod, lead to in the process of dismounting, can only use one model of wrench dismounting, the flexibility is limited when using the problem, the bottom of bolt 1 is fixedly connected with fixed plate 2, the top of fixed plate 2 is provided with fastening assembly, the top of fastening assembly is provided with nut 3, through the setting of fastening assembly, can after tightening bolt 1, make the friction between the outer wall thread of bolt 1 and the inner wall thread of nut 3 larger, further improve the fastening effect, avoid the situation of loosening, nut 3 is sleeved in the outer wall of bolt 1, the outer wall of bolt 1 is slidably sleeved with air bag 5, air bag 5 is fixedly connected to the top of nut 3, the top of air bag 5 is provided with disc 4, disc 4 is slidably sleeved in the outside of bolt 1, in the process of rotating bolt 1 will make the distance between nut 3 and disc 4 smaller, further compress air bag 5, make air bag 5 expand in the inner chamber of drill hole, to make the device realize its application fixed effect, simultaneously air bag 5 can be elastically deformed, further make this fastener can be disassembled and reused.

[0025] In the embodiment, the outer wall of the air bag 5 is circumferentially provided with a plurality of anti-skid protruding rods 6. Through the arrangement of the anti-skid protruding rods 6, the roughness of the outer portion of the air bag 5 can be improved, and thus the friction between the outer portion of the air bag 5 and the drill hole can be improved, and the fixing effect can be improved.

[0026] In the embodiment, the end of the lead screw 8 away from the bolt 1 is provided with a knob 11. Through the arrangement of the knob 11, the lead screw 8 can be conveniently rotated.

[0027] In the embodiment, the fastening assembly includes a spring 7. The spring 7 is sleeved on the outer wall of the bolt 1, and the upper and lower ends of the spring 7 are fixedly connected with the nut 3 and the fixed plate 2, respectively. Through the arrangement of the spring 7, after the bolt 1 is tightened, the distance between the fixed plate 2 and the nut 3 is increased, so that the spring 7 is pulled, the spring 7 is elastically deformed, a corresponding pulling force is generated, under the elastic force of the spring 7, the friction between the outer wall thread of the bolt 1 and the inner wall thread of the nut 3 is increased, and thus the fastening effect is improved, and the loosening situation is avoided.

[0028] In the embodiment, the limiting assembly comprises the telescopic cylinder 12, the telescopic rod 13 and the connecting assembly, the telescopic cylinder 12 is arranged on the side of the flat plate 10 close to the bolt 1, one end of the telescopic rod 13 is slidably inserted into the inner cavity of the telescopic cylinder 12, the other end of the telescopic rod 13 is fixedly connected with the bolt 1, the two connecting assemblies are arranged on the inner wall of the telescopic cylinder 12 and are fixedly connected with the outer wall of the telescopic rod 13, when the flat plate 10 slides, the telescopic rod 13 can be extended or retracted in the inner cavity of the telescopic cylinder 12, the outer wall circumference of the telescopic rod 13 and the inner wall circumference of the telescopic cylinder 12 are tightly fitted, under the joint action of the telescopic rod 13 and the telescopic cylinder 12, the flat plate 10 can be prevented from rotating with the screw rod 8 when the screw rod 8 rotates.

[0029] In the embodiment, the connecting assembly comprises the connecting groove 14 and the connecting block 15, the connecting groove 14 is arranged on the inner wall of the telescopic cylinder 12, the outer wall of the connecting block 15 is slidably embedded in the inner cavity of the connecting groove 14 and is fixedly connected with the outer wall of the telescopic rod 13, since the connecting block 15 is embedded in the inner cavity of the connecting groove 14, under the interaction between the connecting block 15 and the connecting groove 14, the telescopic rod 13 can be prevented from separating from the inner cavity of the telescopic cylinder 12, and the stability of the limiting assembly in use is improved.

[0030] In the embodiment, the inner cavity of the connecting groove 14 and the outer wall of the connecting block 15 are matched and are dovetail-shaped, one end of the connecting block 15 can be always embedded in the inner cavity of the connecting groove 14, and the stability of the connecting assembly in use is improved.

[0031] In the embodiment, the outer wall circumference of the knob 11 and the side of the flat plate 10 away from the bolt 1 are provided with a plurality of anti-skid edges, the roughness of the outer wall of the flat plate 10 can be improved, and then the friction force when the wrench contacts the flat plate 10 can be improved, the anti-skid edges of the outer wall circumference of the knob 11 can improve the roughness of the outer wall circumference of the knob 11, and then the situation that hands are separated from the knob 11 when the knob 11 is rotated can be prevented.

[0032] The basic principle, main features and advantages of the utility model are shown and described above. The technical workers in the industry should understand that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only preferred examples of the utility model and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and range of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An expansion bolt for fixing a new energy battery, comprising a bolt (1), characterized in that: The outer wall of the bolt (1) is rotatably connected to multiple screws (8) via multiple bearings. Each screw (8) is screwed to a fixed cylinder (9). Each fixed cylinder (9) is fixedly sleeved with a plate (10). The plate (10) is provided with a limit component on the side near the bolt (1). The bottom end of the bolt (1) is fixedly connected to a fixed plate (2). The top end of the fixed plate (2) is provided with a fastening component. The top end of the fastening component is provided with a nut (3). The nut (3) is sleeved on the outer wall of the bolt (1). An airbag (5) is slidably sleeved on the outer wall of the bolt (1). The airbag (5) is fixedly connected to the top end of the nut (3). The top end of the airbag (5) is provided with a disc (4). The disc (4) is slidably sleeved on the outside of the bolt (1).

2. The expansion bolt for fixing a new energy battery according to claim 1, characterized in that: The outer circumference of the airbag (5) is provided with several anti-slip protrusions (6).

3. The expansion bolt for fixing a new energy battery according to claim 1, characterized in that: A knob (11) is provided at the end of the lead screw (8) away from the bolt (1).

4. The expansion bolt for fixing a new energy battery according to claim 1, characterized in that: The fastening assembly includes a spring (7), which is sleeved on the outer wall of the bolt (1). The upper and lower ends of the spring (7) are fixedly connected to the nut (3) and the fixing plate (2) respectively.

5. The expansion bolt for fixing a new energy battery according to claim 1, characterized in that: The limiting assembly includes a telescopic cylinder (12), a telescopic rod (13), and a connecting assembly. The telescopic cylinder (12) is disposed on the side of the plate (10) near the bolt (1). One end of the telescopic rod (13) is slidably inserted into the inner cavity of the telescopic cylinder (12), and the other end of the telescopic rod (13) is fixedly connected to the bolt (1). Both connecting assemblies are disposed on the inner wall of the telescopic cylinder (12) and fixedly connected to the outer wall of the telescopic rod (13).

6. The expansion bolt for fixing a new energy battery according to claim 5, characterized in that: The connecting assembly includes a connecting block (15), and the inner wall of the telescopic cylinder (12) is provided with a connecting groove (14). The outer wall of the connecting block (15) is slidably embedded in the inner cavity of the connecting groove (14) and fixedly connected to the outer wall of the telescopic rod (13).

7. The expansion bolt for fixing a new energy battery according to claim 6, characterized in that: The inner cavity of the connecting groove (14) fits into the outer wall of the connecting block (15) and both are dovetail-shaped.

8. The expansion bolt for fixing a new energy battery according to claim 3, characterized in that: The flat plate (10) on the side away from the bolt (1) and the outer circumference of the knob (11) are provided with several anti-slip ridges.

Images