Anti-static oil dipstick

Abstract

The utility model relates to an anti-static oil dipstick which comprises a dipstick frame, a dipstick belt, a dipstick weight, a rocking handle, a handle, a ratchet wheel, a wire, a clockwork spring and a wire clamp. The ruler belt revolute pair is connected to the middle of the ruler frame; the ruler weight is fixedly connected with the tape releasing end of the ruler tape; one end of the rocking handle is coaxially and fixedly connected with the ruler belt; the handle is fixedly connected to one end of the ruler frame; the ratchet wheel revolute pair is connected to the rear side of the ruler frame; the wire is wound on the outer side of the middle shaft on one side end face of the ratchet wheel; the clockwork spring is connected between the rotating shaft of the ratchet wheel and the ruler frame; the paying-off end of the wire sequentially penetrates through the ruler frame and the handle, penetrates out of the rear end of the handle and then is connected with the wire clamp. The oil dipstick can effectively solve the problem that static electricity generated in the using process of the oil dipstick is gathered, the static electricity is reduced, oil explosion and fire are avoided, the whole structure does not need to occupy extra space, and use and storage are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of dipsticks, in particular to an anti-static dipstick. Background Art

[0002] In the petroleum and petrochemical industries, accurately mastering the quantity of oil products is an important basic work to ensure production, and manual measurement is a common technology in the industry and even worldwide. Currently, the manual measurement method implements the "Manual Method for Measuring the Liquid Level of Petroleum and Liquid Petroleum Products" (GB / T 13894-2023). The dipstick is an important tool for manual measurement and a commonly used instrument for oil measurement and storage personnel. Common dipsticks on the market have styles such as straight handles and inclined handles.

[0003] When performing manual measurement, the operator carries the dipstick and inserts it at the oil measurement hole on the tank top. The weight and the tape are immersed in the oil product to be measured. After the depth weight touches the bottom, the dipstick is lifted, and then the reading is taken according to the liquid mark. However, during the operation process, due to the easy generation of static electricity by the human body, dipstick, etc., static sparks may occur, posing a safety hazard.

[0004] For this reason, Chinese Patent CN211317459U discloses an anti-static dipstick, which achieves the anti-static effect by selecting materials such as graphene at key parts, but this solution has the risk of wear. Chinese Patent CN209495751U discloses a dipstick that can conduct static electricity. By connecting the dipstick to the static electricity grounding point of the storage tank with a wire, the static electricity can be eliminated. However, after this technical transformation, the dipstick drags a wire, which brings inconvenience to use and storage instead.

[0005] In summary, the existing dipsticks all have certain defects and deficiencies, and there is still room for further improvement and perfection. Summary of the Invention

[0006] Aiming at the above problems, the purpose of the utility model is to provide an anti-static dipstick, which can solve the static electricity accumulation generated during the use of the dipstick, reduce static electricity and thus avoid the explosion and fire of oil products.

[0007] The technical scheme adopted by the utility model is as follows:

[0008] An anti-static oil level gauge proposed by the present utility model includes a ruler frame, a ruler tape, a weight, a crank and a handle. The ruler tape is rotationally connected to the middle of the ruler frame; the weight is fixedly connected to the tape-releasing end of the ruler tape; one end of the crank is coaxially fixedly connected to the ruler tape; the handle is fixedly connected to one end of the ruler frame; it further includes a ratchet wheel, a wire, a clockwork spring and a wire clip; the ratchet wheel is rotationally connected to the rear side of the ruler frame; the wire is wound outside the central axis of one side end face of the ratchet wheel; the clockwork spring is connected between the rotating shaft of the ratchet wheel and the ruler frame; the wire-releasing end of the wire passes through the ruler frame and the handle in sequence, and passes out from the rear end of the handle and is connected to the wire clip.

[0009] Further, a lock is provided at the upper part of the rear side of the ruler frame, and the output end of the lock is abutted against the teeth on the outer ring of the ratchet wheel through a spring.

[0010] Further, a locking ball is provided on the part of the wire outside the handle.

[0011] Further, a group of limiting rollers are provided in the middle of the rear end of the ruler frame, and the wire-releasing end of the wire passes through the ruler frame through the limiting rollers.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] 1. The present utility model can properly solve the static electricity accumulation that may occur during the manual measurement process and ensure the operation safety;

[0014] 2. The length of the wire can be flexibly adjusted according to the on-site needs;

[0015] 3. Through the structural design of the ratchet wheel and the clockwork spring, the wire recovery can be completed with one key, and the measurer can operate with one hand;

[0016] 4. The overall structure does not need to occupy extra space and is convenient for storage. Description of the Drawings

[0017] Figure 1 It is the overall structure schematic diagram of the present utility model.

[0018] Among them, reference numerals: 1 ruler frame; 2 - ruler tape; 3 - weight; 4 - crank; 5 - handle; 6 - ratchet wheel; 7 - wire; 8 - clockwork spring; 9 - wire clip; 10 - lock; 11 - spring; 12 - locking ball. Detailed Embodiment

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating that the device or component must have a specific orientation, be constructed and operated in a specific orientation.

[0021] See the attached Figure 1 , an anti-static dipstick proposed by the present utility model includes a ruler frame 1, a ruler tape 2, a weight 3, a crank 4, a handle 5, a ratchet 6, a wire 7, a spiral spring 8 and a wire clip 9.

[0022] Among them, the ruler tape 2 is wound into a disk and connected to the middle of the ruler frame 1 through a core shaft rotating pair; the weight 3 is connected to the tape-releasing end of the ruler tape 2; one end of the crank 4 is fixedly connected coaxially with the core shaft of the ruler tape 2; the handle 5 is fixedly connected to the rear end of the ruler frame 21.

[0023] The ratchet 6 is rotationally connected to the middle of the rear side of the ruler frame 1; the wire 7 is wound outside the central axis of one end face of the ratchet 6; the spiral spring 8 is connected between the rotating shaft of the ratchet 6 and the ruler frame 1; the wire-releasing end of the wire 7 passes through the ruler frame 1 and the handle 5 in sequence, and passes out from the rear end of the handle 5 and is connected to the wire clip 9. Among them, a group of limiting rollers 13 are arranged in the middle of the rear end of the ruler frame 1, and the wire-releasing end of the wire 7 passes through the ruler frame 1 after being limited by the limiting rollers 13, which can make the winding and unwinding of the wire 7 smoother.

[0024] The wire 7 and the wire clip 9 are connected to the dipstick and the grounding device to release static electricity. The length of the wire 7 can be flexibly adjusted according to the on-site needs.

[0025] In this embodiment, a lock 10 is installed on the upper part of the rear side of the ruler frame 1, and the output end of the lock 10 abuts against the teeth on the outer ring of the ratchet 6 through a spring 11; when needed, the wire 7 is pulled outwards, the ratchet 6 rotates to release the wire 7, and at the same time the lock 10 acts on the ratchet 6 under the pulling force of the spring 11, and the ratchet 6 can be locked after reaching the required length. After the measurement is completed, the lock 10 is pressed to disengage the spring 11 from the teeth of the ratchet 6 to complete the unlocking, and the ratchet 6 rotates under the action of the spiral spring 8, thereby driving the wire 7 to reset.

[0026] In this embodiment, a locking ball 12 is arranged on the part of the wire 7 outside the handle 5 and close to the wire clip 9; when the wire 7 is retracted, the locking ball 12 can prevent excessive retraction from damaging the connection between the wire 7 and the wire clip 9.

[0027] Before normal oil measurement operation, extend the wire 7 at the tail of the dipstick handle 5 to a sufficient length so that the wire clamp 9 is electrostatically connected to the oil tank to be measured away from the metering hole; when the wire 7 is extended, it drives the ratchet 6 to rotate, and the hairspring 8 is compressed; when the wire 7 reaches the working length, the stopper 10 locks the ratchet 6 under the action of the spring 11 to prevent the hairspring 8 from rebounding and retracting the wire 7; after the oil measurement is completed, press the button of the stopper 10 to contract the spring 11 and release the ratchet 6, and the ratchet 6 drives the wire 7 to retract until it reaches the position of the locking ball 12 and is automatically locked, completing the automatic retraction of the wire 7.

[0028] Matters not elaborated in the present utility model are well-known technologies.

[0029] The embodiments described above are only descriptions of the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. An antistatic dipstick, comprising a ruler frame, a ruler tape, a ruler weight, a crank and a handle, wherein the ruler tape rotating pair is connected to the middle of the ruler frame; the ruler weight is fixedly connected to the unwinding end of the ruler tape; one end of the crank is coaxially fixedly connected to the ruler tape; the handle is fixedly connected to one end of the ruler frame; characterized in that: It also includes a ratchet, a wire, a spring and a wire clamp; the ratchet rotating pair is connected to the rear side of the ruler frame; the wire is wound around the outside of the central axis of one end face of the ratchet; the spring is connected between the rotating axis of the ratchet and the ruler frame; the wire-releasing end of the wire passes through the ruler frame and the handle in turn, and is connected to the wire clamp after passing through the rear end of the handle.

2. The antistatic dipstick according to claim 1, characterized in that: A locker is arranged on the upper rear side of the ruler frame, and the output end of the locker abuts against the gear teeth of the outer ring of the ratchet through a spring.

3. The antistatic dipstick according to claim 1, characterized in that: The portion of the wire located outside the handle is provided with a locking ball.

4. The antistatic dipstick according to claim 1, characterized in that: A group of limiting rollers is arranged in the middle of the rear end of the ruler frame, and the wire-releasing end of the conductor passes through the limiting rollers and out of the ruler frame.

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