CN212564032U - Screw type seal with identification function - Google Patents

Abstract

The utility model discloses a screw type seal with marking function, which comprises a seal screw and a seal cap, wherein a boss is arranged below a nut of the seal screw, and a clamping groove is arranged between the boss and the nut; the seal cap is hollow, a through hole for a seal screw to pass through is formed in the lower end of the seal cap, elastic parts are symmetrically fixed to two ends of the inner wall of the seal cap respectively, and a buckle is fixed to one end, in contact with each other, of each elastic part; when the seal cap is pressed into the seal screw, the clamping groove and the buckle are buckled and locked. The utility model discloses a screw formula seal has strengthened the protect function and the sign function of seal.

Description

Screw type seal with identification function

Technical Field

The utility model belongs to the technical field of the measurement. More specifically, the present invention relates to a screw type seal having an identification function.

Background

Mutual inductor: a device for measuring physical quantities such as current and voltage in a line. Because the electricity consumption is extremely large in special scenes such as factories, large buildings, substations and the like, if the method similar to a resident electricity meter is used for directly inserting the electric wire into the electricity meter to measure the voltage and the current in the line, the electricity meter can be burnt. Therefore, the current and voltage in the line are reduced in equal proportion by using the mutual inductor (the voltage is reduced from large voltage, or the current is reduced from large current to small current, so the mutual inductor is also called as a 'transformer for instrument') and then is connected to the electric meter for measurement.

The mutual inductor scales the current or the voltage according to a certain proportion, so that if a user adjusts the proportion privately, the electric meter can lack the metering amount of electricity, and electricity stealing is realized. Therefore, when the electric power enterprise installs metering equipment such as an electric meter and the like for a user, the proportion of the mutual inductor can be recorded, and a seal is applied to prevent electricity stealing.

The sealing device mainly used at present is divided into a threading type and a buckling type.

The threading type is a method in which a seal line is threaded through a screw hole using a perforated screw and fixed by a device such as a screw type seal in a device to be protected. If the seal is forcibly opened, the seal line will be broken.

The snap-in type is that a gap is left between the screw hole and the top of the screw, the plastic snap-in device is pressed down and embedded, the screw cap is completely wrapped, and the snap-in type seal is damaged if the screw needs to be unscrewed. The high-grade buckle type seal is attached with an RFID near field communication chip, so that seal code management and seal forgery prevention can be realized.

The sealing devices mainly used at present have the following defects: 1. the reliability is poor, and at present, the threading screw type seal has certain process defects occasionally when the seal is pressed, for example, the seal material is soft, a gap exists when the seal is pressed, the threading of the seal can be pulled out, the risk of threading the seal back again after the equipment is changed is avoided, and the significance of the seal is lost. The prior art uses a craft to break off the embedded buckle with the aid of tools such as tweezers and blades, and then take out the seal and re-mount it, which is poor in reliability. Meanwhile, even if part of the bayonet bar type seal is anti-counterfeit by using the near field communication chip, several mainstream encryption schemes of the near field communication chip are cracked at present, so that the reliability is poor. The two existing schemes have low imitation difficulty and are not suitable for the current social situation. 2. Poor identification degree: for the equipment such as ammeter, mutual-inductor, install in the eminence very much, the in-process of the tour of enterprise or supervision department leads to can't see screw formula seal clearly on ground because screw formula seal is little, the position is high. There is a high difficulty of patrol. Meanwhile, the screw type seal has uniform pattern and color, so that the identifiability is poor. It is difficult to know the internal wiring scheme through the screw type seal.

Disclosure of Invention

The utility model aims at providing a screw formula seal with sign function utilizes inside elastic component of seal cap and buckle, and the draw-in groove on the seal screw, dies seal cap and seal screw lock as an organic whole, prevents to be unpack apart by violence.

The utility model discloses still another purpose provides a screw formula seal with identification function utilizes the great seal cap of volume, improves the identifiability of seal, realizes identification function.

In order to achieve these objects and other advantages in accordance with the present invention, a screw type seal with identification function is provided, which comprises a seal screw and a seal cap, wherein a boss is provided below a nut of the seal screw, and a slot is provided between the boss and the nut; the seal cap is hollow, a through hole for a seal screw to pass through is formed in the lower end of the seal cap, elastic parts are symmetrically fixed to two ends of the inner wall of the seal cap respectively, and a buckle is fixed to one end, in contact with each other, of each elastic part; the outer diameter of the boss is the same as that of the nut; when the seal cap is pressed into the seal screw, the clamping groove and the buckle are buckled and locked.

Preferably, the seal cap surface is cast with seal marks.

Preferably, the elastic member is a spring.

Preferably, the buckle is a spherical marble, and the clamping groove is an annular groove.

Preferably, the seal cap is ellipsoidal or spherical.

Preferably, the seal cap is made of plastic, and the seal screw is made of steel.

The utility model discloses at least, include following beneficial effect: 1. compared with threading type and buckle type seals, the screw type seal is more difficult to change. The structure of the seal cannot be recovered once being damaged, the seal cannot be opened easily, and the seal cannot be sealed for the second time after being opened, so that the protection function of the seal is enhanced. 2. The screw type seal has strong identification and larger shape, and can be used for casting seal information on the screw type seal or identifying the screw type seal information through appearance shape and color.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of the seal cap of the present invention.

Fig. 2 is a schematic structural view of the seal screw of the present invention.

Fig. 3 is a top view of the seal cap of the present invention.

Fig. 4 is a diagram illustrating the steps of mounting the seal cap and the seal screw according to the present invention.

Fig. 5 is a diagram illustrating the steps of mounting the seal cap and the seal screw according to the present invention.

Fig. 6 is a diagram illustrating the steps of mounting the seal cap and the seal screw according to the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

The utility model discloses a screw type seal with marking function, including seal screw and seal cap, set up the boss below the nut of seal screw, the boss is annular boss, be the draw-in groove between boss and the nut; the seal cap is hollow, a through hole for a seal screw to pass through is formed in the lower end of the seal cap, elastic parts are symmetrically fixed to two ends of the inner wall of the seal cap respectively, and a buckle is fixed to one end, in contact with each other, of each elastic part; the outer diameter of the boss is the same as that of the nut; when the seal cap is pressed into the seal screw, the clamping groove and the buckle are buckled and locked.

The utility model discloses a use method of screw formula seal does: when the seal screw is screwed into the screw hole of the mutual inductor, the seal cap is covered right above the seal screw, and is pressed downwards with force, the screw cap of the seal screw firstly penetrates through the through hole to enter the seal cap, when the sharp sliding part of the screw is extruded between the buckles and compresses the elastic part, until the screw cap is completely extruded and passes through the buckles, the spring recovers, and the buckles are extruded in the clamping grooves, so that the seal is fixed. If the seal cap is pulled upwards, the seal cap cannot be pulled out due to the effects of the clamping groove, the pull buckle and the spring. In addition, the clamping groove of the seal cap is completely filled with the buckle, so that tools such as crowbars or blades cannot be used to penetrate into the elastic part. The seal can be opened only by violent destruction, and the seal screw can be unscrewed by breaking the seal cap.

The utility model discloses a draw-in groove, buckle and elastic component have multiple realization form, as illustrated the utility model discloses a screw seal's a realization form.

As shown in fig. 1-3, the screw type seal with the identification function includes a seal screw 10 and a seal cap 20, a boss 13 is provided on a stud 12 below a nut 11 of the seal screw 10, the boss 12 is annular, and a slot is provided between the boss 13 and the nut 11; the seal cap 20 is hollow, a through hole for a seal screw to pass through is formed in the lower end of the seal cap, springs 21 are symmetrically fixed to two ends of the inner wall of the seal cap respectively, and marbles 22 are fixed to one ends, in contact with each other, of the springs 21; wherein, the outer diameter of the boss 13 is the same as that of the screw cap 11; when the seal cap 20 is pressed into the seal screw 10, the clamping groove and the ball 22 are locked.

In another embodiment, as shown in fig. 3, the seal cap surface is stamped with seal marks, and seal information can be stamped on the screw seal, or identification of the screw seal information can be realized through appearance modeling and color.

In another embodiment, the ball 22 is a spherical ball and the slot is an annular slot.

In another embodiment, the seal cap 20 is an ellipsoid or sphere with a large outer surface area to facilitate the casting of large seal marks.

In another embodiment, the seal cap 20 is made of plastic, and the seal screw 10 is made of steel, so as to prolong the service life.

Fig. 4-6 show according to the utility model discloses a screw formula seal mounting means of sign function, when seal screw 10 twists the screw hole of mutual-inductor, seal screw 10 is installed and is exerted seal cap 20 in screw part top after finishing on the mutual-inductor, pushes down seal cap 20 hard, seal screw 10's entering seal cap 20. The tip sliding part of the nut 11 is squeezed into the marble 22 and compresses the spring 21, when the nut 11 is completely squeezed into and passes through the marble 22, the spring 21 is recovered, the marble 22 is squeezed into the clamping groove between the nut 11 and the boss 13, the seal is fixed, at the moment, the seal cap 20 is pulled upwards, and the seal cap 20 cannot be pulled out due to the action of the marble 22 and the spring 21. Opening the seal can only be done with violent destruction: the seal screw can be unscrewed by breaking the seal cap.

This use neotype sign function's screw formula seal has following advantage:

first, the screw seal of the present invention is more difficult to modify than the threading and snap seals. Once the structure is damaged, the structure cannot be recovered, and the protection function of the seal is enhanced. Secondly, the screw type seal has strong identification and large shape, and seal information can be cast and engraved on the screw type seal or the identification of the screw type seal information can be realized through appearance shape and color. Such as: when the 1 and 2 wiring terminals are connected inside the primary side of the transformer, the transformation ratio of the transformer is 200/5; when the internal wiring is connected with the wiring terminals 1 and 3, the transformation ratio of the mutual inductor is 400/5, however, because the wiring terminals are arranged inside the mutual inductor and are protected by the cabinet door, the sealing seal is applied to the cabinet door at present, and the wiring mode of the internal plate cannot be visually judged. However, the seal can be used for seal cutting an internal wiring scheme, and the seal has larger volume compared with a threading type seal and a buckling type seal, so that the seal cutting content can be clearly distinguished even if the mutual inductor is far away from inspection personnel. Through discerning the seal cutting content, can let the personnel of patrolling accomplish not destroying the seal, do not open the mutual-inductor cabinet door and can discern the mutual-inductor and once incline the side wiring scheme. Similarly, the seal of the secondary side of the transformer has the same advantages.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims (6)

1. A screw type seal with an identification function is characterized by comprising a seal screw and a seal cap, wherein a boss is arranged below a nut of the seal screw, and a clamping groove is formed between the boss and the nut; the seal cap is hollow, a through hole for a seal screw to pass through is formed in the lower end of the seal cap, elastic parts are symmetrically fixed to two ends of the inner wall of the seal cap respectively, and a buckle is fixed to one end, in contact with each other, of each elastic part; when the seal cap is pressed into the seal screw, the clamping groove and the buckle are buckled and locked.

2. The screw type seal with identification function according to claim 1, wherein the seal cap is surface-molded with a seal identification.

3. The screw type seal with identification function of claim 2, wherein said elastic member is a spring.

4. The screw type seal with identification function of claim 3, wherein the snap is a ball-shaped ball, and the slot is an annular slot.

5. The screw type seal with identification function according to claim 4, wherein said seal cap is an ellipsoid or a sphere.

6. The screw type seal with marking function as claimed in claim 5, wherein the material of the seal cap is plastic, and the material of the seal screw is steel.

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