Fastening device for combined bolt

Abstract

The utility model relates to the technical field of fastening devices, in particular to a fastening device for a combined bolt. According to the technical scheme, the bolt comprises a bolt body and further comprises a sleeve, the sleeve comprises a sleeve head and a connecting handle connected with external pneumatic equipment, a connecting hole matched with the bolt body is formed in the bottom of the sleeve head, a connecting piece is movably connected to the outer side of the connecting hole in a sleeving mode, and a mounting handle is fixedly connected to one side of the connecting piece; the clamping assembly comprises a fixing piece fixedly installed in the connecting hole and clamping pieces installed on the two sides in the fixing piece in a sliding mode and used for clamping the bolt. The sleeve is prevented from falling off from the head of the bolt during rotation, it is ensured that the bolt can be connected to the joint in a fastened mode, and the fastening stability of the bolt is improved; and meanwhile, semi-automatic or manual bolt fastening operation is also realized, so that an operator can conveniently operate in different working scenes, and the mounting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of fastening device technology, and in particular to a fastening device for combination bolts. Background Technology

[0002] In the modern automotive industry, engines generate a large amount of heat during operation, causing the temperature inside the engine compartment to reach hundreds of degrees Celsius. Furthermore, engines vibrate during operation, and bumps during vehicle movement exert continuous forces on the engine hood. Therefore, high-temperature resistant bolts are typically used to secure the engine hood. When tightening these bolts, a sleeve is usually engaged with the bolt head, and rotating the sleeve secures the bolt at the connection. However, during this process, the sleeve may detach from the bolt head, making it difficult to tighten the bolt. Therefore, we propose a fastening device for combined bolts. Summary of the Invention

[0003] The purpose of this invention is to address the problem in the prior art where the sleeve and bolt head detach, making it difficult to tighten and fix the bolts, and to propose a fastening device for combined bolts.

[0004] The technical solution of this utility model: A fastening device for combined bolts, including bolts, and further comprising:

[0005] A sleeve, the sleeve including a sleeve head and a connecting handle for connecting to an external pneumatic device, wherein the bottom of the sleeve head is provided with a connecting hole adapted to the bolt;

[0006] The connector is movably attached to the outside of the connecting hole, and a mounting handle is fixedly connected to one side of the connector.

[0007] The engaging assembly includes a fixing member fixedly installed in the connecting hole and a clamping member slidably installed on both sides of the fixing member for clamping the bolt.

[0008] Optionally, the bolt includes a bolt head, the top of which has a circular hole for the fastener to be inserted, and a washer is movably mounted on the bottom of the bolt head. Both the top and bottom of the washer are fixedly fitted with rubber layers.

[0009] Optionally, multiple sets of rectangular strips are fixedly installed on the inner side of the connector, and a locking block is fixedly installed on the top of the rectangular strip. Multiple sets of slots for sliding of the rectangular strip are opened on the outer side of the connecting handle, and a groove for accommodating the locking block is opened on the top of the slot.

[0010] Optionally, the engaging assembly further includes a mounting groove formed within the fixing member, in which a trapezoidal block is slidably mounted. The trapezoidal block includes symmetrically arranged inclined surfaces, and the locking member abuts against the inclined surfaces of the trapezoidal block.

[0011] Optionally, rectangular slots are provided on both sides of the circular hole for the insertion of the clamping member. A telescopic rod is fixedly installed in the mounting slot. The bottom end of the telescopic rod is fixedly connected to the trapezoidal block. A first spring is fixedly connected between the mounting slot and the trapezoidal block. The first spring is sleeved on the outside of the telescopic rod.

[0012] Optionally, the fixing member has through holes on both sides for the clamping member to pass through, and a sliding plate is fixedly installed on the top and bottom of the clamping member. The fixing member also has sliding grooves on both sides for the sliding plate to slide.

[0013] Optionally, a guide rod is fixedly installed inside the slide groove, and a second spring is fixedly connected between the side of the slide groove away from the trapezoidal block and the sliding plate, with the second spring sleeved on the outside of the guide rod.

[0014] Optionally, a protrusion is fixedly installed at the bottom of the trapezoidal block, a first magnetic component is fixedly installed at the top of the connecting hole, and a second magnetic component is fixedly installed at the top of the bolt head.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] This utility model, by setting up a locking component, ensures that when the sleeve and the bolt head are locked together, the locking member extends out of the sleeve and into the bolt head, preventing the sleeve from falling off the bolt head when it rotates, ensuring that the bolt can be securely connected at the connection point, and improving the stability of the bolt fastening.

[0017] Furthermore, the connection handle, connector, and mounting handle that can be connected to external pneumatic equipment enable semi-automatic or manual bolt tightening operations, making it convenient for operators to operate in different work scenarios and improving installation efficiency.

[0018] In summary, this utility model prevents the sleeve from detaching from the bolt head during rotation, ensuring the bolt is securely fastened at the connection point and improving the stability of bolt fastening. Furthermore, it enables semi-automatic or manual bolt fastening operations, facilitating operation in different work scenarios and improving installation efficiency. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of this utility model is provided;

[0020] Figure 2 A structural schematic diagram of the connector in this utility model is provided;

[0021] Figure 3 A schematic diagram of the internal structure of the sleeve head in this utility model is provided. Figure 1 ;

[0022] Figure 4 A schematic diagram of the internal structure of the sleeve head in this utility model is provided. Figure 1 ;

[0023] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0024] Reference numerals: 1. Sleeve; 101. Sleeve head; 102. Connecting handle; 103. Slot; 104. Groove body; 2. Bolt; 201. Bolt head; 202. Circular hole; 3. Connecting component; 31. Rectangular strip; 32. Locking block; 4. Mounting handle; 5. Gasket; 6. Rubber layer; 7. Connecting hole; 8. First magnetic component; 9. Second magnetic component; 10. Second spring; 11. Rectangular groove; 12. Fixing component; 121. Mounting groove; 122. Slide groove; 13. Trapezoidal block; 14. Clamping component; 15. Telescopic rod; 16. First spring; 17. Sliding plate; 18. Guide rod. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0026] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0027] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Example

[0032] like Figures 1 to 5 As shown, the present invention proposes a fastening device for a combination bolt, including a bolt 2 and a sleeve 1. The bolt 2 includes a bolt head 201. The top of the bolt head 201 has a circular hole 202 for inserting a fastener 12. A washer 5 is movably installed at the bottom of the bolt head 201. Rubber layers 6 are fixedly installed on both the top and bottom of the washer 5. The washer 5 is used to increase the friction between the bolt 2 and the connection part, further preventing the bolt 2 from loosening. The rubber layer 6 plays a buffering role, reducing the impact of vibration and vehicle bumps on the connection of the bolt 2, and improving the stability and durability of the connection.

[0033] In this embodiment, the sleeve 1 includes a sleeve head 101 and a connecting handle 102 connected to an external pneumatic device. The bottom of the sleeve head 101 is provided with a connecting hole 7 that is adapted to the bolt 2. A protrusion is fixedly installed at the bottom of the trapezoidal block 13. A first magnetic element 8 is fixedly installed at the top of the connecting hole 7. A second magnetic element 9 is fixedly installed at the top of the bolt head 201. When the sleeve head 101 is engaged with the connecting hole 7, the first magnetic element 8 and the second magnetic element 9 attract each other, providing additional adsorption force, realizing rapid positioning, thereby improving the tightness of the connection between the sleeve 1 and the bolt 2 and facilitating operation by the staff, thus increasing practicality.

[0034] The connector 3 is movably sleeved on the outside of the connecting hole 7, and an installation handle is fixedly connected to one side of the connector 3. Multiple sets of rectangular strips 31 are fixedly installed on the inside of the connector 3, and a locking block 32 is fixedly installed on the top of the rectangular strips 31. Multiple sets of slots 103 for sliding of the rectangular strips 31 are opened on the outside of the connecting handle 102. A groove 104 for accommodating the locking block 32 is opened on the top of the slot 103. When the connector 3 is sleeved on the outside of the connecting handle 102, the rectangular strips 31 are located in the slots 103 and the locking block 32 is located in the groove 104. This realizes semi-automatic or manual bolt tightening operation, which is convenient for operators to operate in different work scenarios and improves installation efficiency.

[0035] In this embodiment, the locking assembly includes a fixing member 12 fixedly installed in the connecting hole 7 and a locking member 14 slidably installed on both sides of the fixing member 12 for locking the bolt 2. The locking assembly also includes an installation groove 121 opened in the fixing member 12. A trapezoidal block 13 is slidably installed in the installation groove 121. The trapezoidal block 13 includes symmetrically arranged inclined surfaces. The locking member 14 abuts against the inclined surfaces of the trapezoidal block 13. When the fixing member 12 moves down, the locking member 14 enters the rectangular groove 11 on both sides of the connecting hole 7 under the squeezing of the trapezoidal block 13, thereby making the sleeve head 101 and the bolt head 201 relatively fixedly connected, preventing the sleeve 1 from falling off the bolt head 201 when rotating, ensuring that the bolt 2 can be tightly connected at the connection, and improving the stability of the bolt 2 fastening.

[0036] The circular hole 202 has rectangular slots 11 on both sides for inserting the clamping member 14. A telescopic rod 15 is fixedly installed in the mounting slot 121. The bottom end of the telescopic rod 15 is fixedly connected to the trapezoidal block 13. A first spring 16 is fixedly connected between the mounting slot 121 and the trapezoidal block 13. The first spring 16 is sleeved on the outside of the telescopic rod 15. As the fixing member 12 moves down, the trapezoidal block 13 moves up under the action of the telescopic rod 15. When the sleeve head 101 separates from the bolt head 201, the trapezoidal block 13 resets under the action of the first spring 16.

[0037] In addition, through holes are provided on both sides of the fastener 12 for the clamping member 14 to pass through. Sliding plates 17 are fixedly installed on the top and bottom of the clamping member 14. Sliding grooves 122 are provided on both sides of the fastener 12 for the sliding plates 17 to slide. When the clamping member 14 slides, the sliding plates 17 slide in the sliding grooves 122.

[0038] Finally, a guide rod 18 is fixedly installed inside the slide groove 122. A second spring 10 is fixedly connected between the side of the slide groove 122 away from the trapezoidal block 13 and the sliding plate 17. The second spring 10 is sleeved on the outside of the guide rod 18. The guide rod 18 is used to improve the sliding stability of the sliding plate 17. When the sleeve head 101 separates from the bolt head 201, the clamping part 14 is reset under the action of the second spring 10.

[0039] The working principle of this embodiment is as follows: During the working process, the tightening method of bolt 2 is first selected according to the working environment. If a semi-automatic tightening method is required, the connecting handle 102 is connected to the external pneumatic equipment. If a manual tightening method is used, the connecting piece 3 is sleeved on the outside of the connecting handle 102. At this time, the rectangular strip 31 is located in the slot 103, and the locking block 32 is located in the groove 104, realizing semi-automatic or manual bolt tightening operation, which is convenient for operators to operate in different working scenarios and improves installation efficiency. When tightening bolt 2, the connecting hole 7 at the bottom of the sleeve head 101 is first engaged with the bolt head 201, so that the fixing piece 12 enters the circular hole 202. During the connection process, the fixing member 12 moves downward in the circular hole 202, so that the protrusion at the bottom of the trapezoidal block 13 contacts the bottom of the circular hole 202. As the fixing member 12 moves downward, the trapezoidal block 13 moves upward under the action of the telescopic rod 15, so that the clamping member 14 abutting against the inclined surfaces on both sides of the trapezoidal block 13 enters the rectangular groove 11 on both sides of the connecting hole 7 under the pressure of the trapezoidal block 13. This makes the sleeve head 101 and the bolt head 201 relatively fixedly connected. Then, the sleeve 1 is rotated, which drives the bolt 2 to rotate for tightening. This avoids the sleeve 1 from falling off the bolt head 201 when it rotates, ensuring that the bolt 2 can be tightly connected at the connection and improving the stability of the bolt 2 tightening.

[0040] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A fastening device for a combination bolt, comprising a bolt (2), characterized in that, Also includes: Sleeve (1), the sleeve (1) includes a sleeve head (101) and a connecting handle (102) for connecting to an external pneumatic device, and the bottom of the sleeve head (101) is provided with a connecting hole (7) that is adapted to the bolt (2). A connector (3) is movably sleeved to the outside of the connecting hole (7), and an installation handle is fixedly connected to one side of the connector (3); The engaging assembly includes a fixing member (12) fixedly installed in the connecting hole (7) and a clamping member (14) slidably installed on both sides of the fixing member (12) for clamping the bolt (2).

2. A fastening device for combination bolts according to claim 1, characterized in that, The bolt (2) includes a bolt head (201), the top of which has a circular hole (202) for the fastener (12) to be inserted, and a washer (5) is movably installed at the bottom of the bolt head (201). A rubber layer (6) is fixedly installed on both the top and bottom of the washer (5).

3. A fastening device for combination bolts according to claim 2, characterized in that, Multiple sets of rectangular strips (31) are fixedly installed on the inner side of the connector (3), and a locking block (32) is fixedly installed on the top of the rectangular strip (31). Multiple sets of slots (103) for sliding of the rectangular strip (31) are opened on the outer side of the connecting handle (102), and a groove (104) for accommodating the locking block (32) is opened on the top of the slot (103).

4. A fastening device for combination bolts according to claim 2, characterized in that, The locking assembly also includes a mounting groove (121) opened in the fixing member (12), a trapezoidal block (13) is slidably installed in the mounting groove (121), the trapezoidal block (13) includes symmetrically arranged inclined surfaces, and the locking member (14) abuts against the inclined surfaces of the trapezoidal block (13).

5. A fastening device for combination bolts according to claim 4, characterized in that, The circular hole (202) has rectangular slots (11) on both sides for inserting the clamping member (14). A telescopic rod (15) is fixedly installed in the mounting slot (121). The bottom end of the telescopic rod (15) is fixedly connected to the trapezoidal block (13). A first spring (16) is fixedly connected between the mounting slot (121) and the trapezoidal block (13). The first spring (16) is sleeved on the outside of the telescopic rod (15).

6. A fastening device for combination bolts according to claim 5, characterized in that, Both sides of the fixing member (12) are provided with through holes through which the clamping member (14) can pass. The top and the top of the clamping member (14) are fixedly installed with sliding plates (17). Both sides of the fixing member (12) are provided with sliding grooves (122) for the sliding plates (17) to slide.

7. A fastening device for combination bolts according to claim 6, characterized in that, A guide rod (18) is fixedly installed inside the slide groove (122). A second spring (10) is fixedly connected between the side of the slide groove (122) away from the trapezoidal block (13) and the sliding plate (17). The second spring (10) is sleeved on the outside of the guide rod (18).

8. A fastening device for combination bolts according to claim 4, characterized in that, The bottom of the trapezoidal block (13) is fixedly installed with a protrusion, the top of the connecting hole (7) is fixedly installed with a first magnetic component (8), and the top of the bolt head (201) is fixedly installed with a second magnetic component (9).

Images