Engine fastener convenient to calibrate and mount

Abstract

The utility model relates to the technical field of fasteners for engines, and discloses an engine fastener convenient to calibrate and install, which comprises a screw rod, a screw head is fixedly installed at the top of the screw rod, a control assembly is arranged in the screw head, and the control assembly comprises a circular ring connected with the screw head through a vertical rod; the spring is used for resetting the vertical rod when the vertical rod is not limited; according to the engine fastener convenient to calibrate and install, through the arrangement of the control assembly, after the screw rod is completely screwed into the connecting hole, the circular ring abuts against the surface of an engine body, when the circular ring is extruded, the vertical rod fixed to the surface of the circular ring slides towards the interior of the screw head, and when the vertical rod moves, the vertical rod is fixed to the surface of the circular ring. The surfaces of the vertical rods can synchronously and longitudinally move through the moving rings connected with the supporting blocks, when the moving rings move out of the screw head, an operator who is screwing the screw head can be reminded to express that the screw rod is completely screwed, and inconvenience caused by manually judging whether the screw rod is screwed or not is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fastener for engine, concretely is a fastener for engine convenient to calibrate installation. BACKGROUND

[0002] The engine body is the framework of the engine and the installation base of each mechanism and system of the engine, and all the main parts and accessories of the engine are installed in or on the engine body, which bears various loads. Therefore, the engine body must have sufficient strength and rigidity.

[0003] The engine body is mainly composed of a cylinder block, a cylinder sleeve, a cylinder head and a cylinder gasket, etc. The cylinder block is the basic part of the engine, and the cylinder head is one of the main parts of the engine. All the parts of the engine are assembled based on the cylinder block, so the technical condition of the cylinder block directly affects the repair quality and service life of the engine. The close adhesion of the cylinder head to the plane of the cylinder block is achieved by the action of the gasket and the correct tightening of the cylinder head bolt and nut.

[0004] The connection between the cylinder head and the cylinder block of the existing engine is achieved by directly rotating the bolt into the connecting hole and fixing and connecting the cylinder head and the cylinder block through the thread. In the connection process, the worker usually judges whether the bolt is completely tightened by pulling. The manual judgment method cannot achieve accurate installation. To solve this problem, the utility model provides a fastener for engine convenient to calibrate installation. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a fastener for engine convenient to calibrate installation to solve the problems in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a fastener for engine convenient to calibrate installation, comprising a screw rod, a screw head is fixedly installed at the top of the screw rod, a control assembly is arranged in the screw head, and the control assembly comprises:

[0007] A circular ring is connected with the screw head through a vertical rod.

[0008] A spring is used for resetting when the vertical rod loses the limit.

[0009] A calibration piece is used for accurate installation of the screw rod, so as to remind the operator who is tightening the screw head that the screw rod has been completely tightened, and the inconvenience caused by manual judgment of whether the screw rod is tightened is avoided.

[0010] Preferably, the surface of the circular ring is fixedly installed with a vertical rod, the vertical rod penetrates through the screw head and is in sliding connection with the screw head, and when the circular ring is abutted, the vertical rod fixed on the surface of the circular ring can move synchronously in the screw head.

[0011] Preferably, the surface of the vertical rod is fixedly connected with one end of a spring, and the other end of the spring is fixedly installed on the inner wall of the screw head, and the spring can be quickly bounced up when the vertical rod loses the resisting force.

[0012] Preferably, the calibration member comprises a supporting block, one end of the supporting block is fixedly installed on the surface of the vertical rod, and the other end of the supporting block is fixedly installed on the surface of a moving ring, the moving ring penetrates through the screw head and is in sliding connection with the screw head, and the supporting block can drive the moving ring to move longitudinally when the vertical rod moves in the screw head.

[0013] Preferably, the surface of the supporting block is hingedly connected with one end of a movable rod, and the other end of the movable rod is hingedly connected with the surface of a sliding block, and the movable rod can be folded to push the sliding block to slide when the supporting block moves longitudinally.

[0014] Preferably, the sliding block is in sliding connection with the inner wall of the screw head, the surface of the screw head is provided with a through hole, the inner wall of the through hole is attached to the surface of the sliding block, and the surface of the screw head is fixedly installed with a fixed block, and the sliding block can slide along the through hole when being subjected to force.

[0015] Preferably, the sliding block is in the shape of an I-shaped section, and the I-shaped sliding block can stably slide in the through hole.

[0016] Compared with the prior art, the utility model provides a fastener for engine convenient for calibration and installation, which has the following beneficial effects:

[0017] 1、 the fastener for engine convenient for calibration and installation, through setting up control assembly, the screw rod is completely screwed into the connecting hole, the ring is resisted by the surface of the engine body, the ring is extruded, the vertical rod fixed on the surface of the ring slides into the screw head, the moving ring connected with the surface of the vertical rod through the supporting block moves longitudinally synchronously when the vertical rod moves, the moving ring moves out of the screw head, thereby reminding the operator who is screwing the screw head that the screw rod is completely screwed, and the inconvenience caused by manual judgment of whether the screw rod is screwed is avoided.

[0018] 2、 the fastener for engine convenient for calibration and installation, through setting up calibration member, the movable rod hingedly connected with the surface of the supporting block can be folded to push the sliding block to move transversely along the surface of the through hole when the supporting block moves, the sliding block contacts the surface of the fixed block, and the screw rod is in the state of accurate screwing, and the sliding block is provided with four groups, if any one of the four groups of sliding blocks does not contact the surface of the fixed block, the screw rod is in the state of offset installation, and needs to be calibrated. ACCURACY

[0019] Figure 1 It is a front view structural schematic diagram of the utility model;

[0020] Figure 2 is a top view structural schematic diagram of the utility model;

[0021] Figure 3 is a front view sectional structural schematic diagram of the utility model;

[0022] Figure 4 is a screw head sectional structural schematic diagram of the utility model.

[0023] In the drawing: 1, screw rod; 2, screw head; 3, control assembly; 31, circular ring; 32, vertical rod; 33, spring; 34, calibration piece; 341, supporting block; 342, moving ring; 343, movable rod; 344, sliding block; 345, through hole; 346, fixed block. DETAILED DESCRIPTION

[0024] As Figures 1-4 shown, the utility model provides a kind of technical scheme: a kind of fastener for engine convenient to calibrate installation, including screw rod 1, the top of screw rod 1 is fixedly installed with screw head 2, control assembly 3 is arranged in screw head 2, control assembly 3 includes: circular ring 31, vertical rod 32, spring 33, calibration piece 34, when vertical rod 32 moves, vertical rod 32 surface is connected with moving ring 342 by supporting block 341 can be synchronous longitudinal movement, moving ring 342 is removed from screw head 2 when, so that the operator who is being screwed screw head 2 can be reminded, express screw rod 1 has been completely tightened, avoid the inconvenience brought by artificial judgment screw rod 1 whether to tighten.

[0025] The surface of the circular ring 31 is fixedly provided with a vertical rod 32 which penetrates through the screw head 2 and is in sliding connection with the screw head 2, when the circular ring 31 is abutted, the vertical rod 32 fixed on the surface of the circular ring 31 can move synchronously in the screw head 2. The surface of the vertical rod 32 is fixedly connected with one end of a spring 33, the other end of the spring 33 is fixedly provided on the inner wall of the screw head 2, the spring 33 can quickly rebound when the vertical rod 32 loses the abutting force. The calibration piece 34 comprises a supporting block 341, one end of the supporting block 341 is fixedly provided on the surface of the vertical rod 32, the other end of the supporting block 341 is fixedly provided on the surface of a moving ring 342 which penetrates through the screw head 2 and is in sliding connection with the screw head 2, when the vertical rod 32 moves in the screw head 2, the supporting block 341 can drive the moving ring 342 to move longitudinally. The surface of the supporting block 341 is hinged with one end of a movable rod 343, the other end of the movable rod 343 is hinged with the surface of a sliding block 344, when the supporting block 341 moves longitudinally, the movable rod 343 can be folded to push the sliding block 344 to slide. The sliding block 344 is in sliding connection with the inner wall of the screw head 2, the surface of the screw head 2 is provided with a through hole 345, the inner wall of the through hole 345 is in abutment with the surface of the sliding block 344, the surface of the screw head 2 is fixedly provided with a fixed block 346, the sliding block 344 can slide along the through hole 345 when being subjected to force. The cross section of the sliding block 344 is in the shape of an I-beam, the I-beam-shaped sliding block 344 can stably slide in the through hole 345.

[0026] In the utility model, when it is needed to connect the cylinder cover and the cylinder body of the engine, the screw rod 1 is inserted into the connecting hole on the surface of the cylinder cover and the cylinder body, then the screwdriver is inserted into the screw head 2 and is tightened, when the screw head 2 rotates, the screw rod 1 fixed on the surface of the screw head 2 can rotate synchronously to be tightened, when the screw rod 1 is completely tightened, the circular ring 31 is abutted by the surface of the engine body, when the circular ring 31 is subjected to the extrusion force, the vertical rod 32 fixed on the surface of the circular ring 31 slides into the screw head 2, when the vertical rod 32 moves, the moving ring 342 connected with the supporting block 341 on the surface of the vertical rod 32 can move longitudinally synchronously, when the moving ring 342 moves out of the screw head 2, the operator who is tightening the screw head 2 can be reminded that the screw rod 1 has been completely tightened, the inconvenience caused by manually judging whether the screw rod 1 is tightened or not is avoided, when the supporting block 341 moves, the movable rod 343 hinged on the surface of the supporting block 341 can be folded to push the sliding block 344 to move transversely along the surface of the through hole 345, when the sliding block 344 contacts the surface of the fixed block 346, it can be expressed that the screw rod 1 is in the state of accurate tightening, the sliding block 344 is provided with four groups, if any one of the four groups of the sliding block 344 does not contact the surface of the fixed block 346, it can be expressed that the screw rod 1 is in the state of offset installation and needs to be calibrated and reinstalled.

[0027] The utility model has made the detailed description to the utility model generally above, but can make some modification or improvement to it on the basis of the utility model, this is obvious to the general skilled person in the technical field. Therefore, the modification or improvement without departing from the utility model thought spirit, all are within the protection scope of the utility model.

Claims

1. A fastener for an engine which facilitates installation calibration, comprising a screw rod (1), characterized in that: The top of the screw rod (1) is fixedly provided with a screw head (2), the screw head (2) is provided with a control assembly (3), the control assembly (3) comprises: A circular ring (31) is connected with the screw head (2) through a vertical rod (32); A spring (33) is used for resetting when the vertical rod (32) loses limitation; A calibration piece (34) is used for accurate installation of the screw rod (1).

2. An engine fastener for ease of installation and calibration according to claim 1, characterized in that: The surface of the circular ring (31) is fixedly provided with the vertical rod (32), the vertical rod (32) penetrates through the screw head (2) and is in sliding connection with the screw head (2).

3. An engine fastener for ease of installation calibration according to claim 2, characterized in that: The surface of the vertical rod (32) is fixedly connected with one end of the spring (33), and the other end of the spring (33) is fixedly installed on the inner wall of the screw head (2).

4. The engine fastener of claim 1, wherein: The calibration piece (34) comprises a supporting block (341), one end of the supporting block (341) is fixedly installed on the surface of the vertical rod (32), the other end of the supporting block (341) is fixedly installed on the surface of a moving ring (342), the moving ring (342) penetrates through the screw head (2) and is in sliding connection with the screw head (2).

5. An engine fastener for ease of installation and calibration according to claim 4, wherein: The surface of the supporting block (341) is hinged with one end of a movable rod (343), and the other end of the movable rod (343) is hinged with the surface of a sliding block (344).

6. An engine fastener for ease of installation and calibration according to claim 5, wherein: The sliding block (344) is in sliding connection with the inner wall of the screw head (2), the surface of the screw head (2) is provided with a through hole (345), the inner wall of the through hole (345) is attached to the surface of the sliding block (344), and the surface of the screw head (2) is fixedly provided with a fixed block (346).

7. An engine fastener for ease of installation calibration according to claim 6 wherein: The cross section of the sliding block (344) is in the shape of an I-shaped beam.

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