CN218490343U - A constant torque sealing cap - Google Patents

Abstract

The utility model discloses a constant torque sealing cover, which comprises an inner cover, a constant torque disc and an outer cover. There is a concave cavity extending inwardly from its top surface; the constant torque disc includes a central disc body, which is set on the clamping seat, and there are several pawls that can produce elastic deformation along the periphery of the central disc body. The tip of the ratchet faces the tightening direction; the outer cover includes an outer cover body, the inner top surface of the outer cover body has a tab that is inserted into the concave cavity, and the inner wall of the outer cover body has a ring that matches with several ratchets. Arranged serrations, the tooth direction of the circular arrangement of the serrations is opposite to the tightening direction. When the utility model seals the mouth of a threaded circular bottle, can or pipe, different operators can obtain the same tightening degree and expected sealing effect, and the operation is convenient.

Description

A constant torque sealing cap

technical field

The utility model relates to the technical field of sealing devices, in particular to a constant torque sealing cap.

Background technique

At present, for the sealing of the mouth of a threaded circular bottle, jar or tube, a screw cap is usually used for sealing, that is, a sealing cap with consistent matching threads or thread-like arrangement of protrusions is used.

When tightening the cap, different operators use different torques to tighten it, that is, the strength used is often different, resulting in different tightening degrees, so when the cap is repeatedly opened and tightened, it will be different due to the conditions of use and the operator. Changes (different people's hand strength is different) cause a certain degree of inconvenience. If it is too tight, it will take a lot of effort to open; if it is too loose, the seal will not be guaranteed.

Utility model content

The purpose of the utility model is to overcome the defects and deficiencies in the prior art, and provide a constant torque sealing cap, when sealing the mouth of a threaded circular bottle, can or tube, different operators can The same tightness and expected sealing effect can be obtained for easy operation.

In order to achieve the above object, the utility model provides the following technical solutions:

A constant torque sealing cap, including an inner cap, a constant torque disc and an outer cap, characterized in that: the inner cap includes an inner cap body, and the outer top surface of the inner cap body has a clamping seat, so The clamping seat is provided with a concave cavity extending inwardly from its top surface; the fixed torque disc includes a central disc body, and the central disc body is sleeved on the clamping seat, and along the central disc body There are several pawls that can produce elastic deformation around the periphery of the pawl, and the tips of the several pawls face the tightening direction; the outer cover includes an outer cover body, and the inner top surface of the outer cover body has snap-in For the tab in the concave cavity, the inner wall of the outer cover has serrations arranged in a ring that cooperate with the plurality of pawls, and the tooth direction of the serrations arranged in a ring is opposite to the tightening direction.

Further, the middle part of the inner cover is sunken downwards to form a depression, the middle part of the bottom surface of the depression is raised upwards to form a raised part, and a ring is formed inside the inner cover around the depression. Shaped several-shaped sealing mouth, the inner top surface of the ring-shaped several-shaped sealing mouth is the sealing surface.

Further, the inner wall of the inner cover is provided with internal threads, which can be screwed into the mouth of a circular bottle, jar or tube provided with external threads.

Further, the clamping seat is integrally connected to the top surface of the protrusion.

Further, the clamping seat is a square seat.

Further, a square hole is provided at the center of the central disk body, and the central disk body is fitted on the clamping seat through the square hole.

Compared with the prior art, the beneficial effects of the utility model are:

When the utility model is tightened, the outer cover is rotated forward, so that the circularly arranged sawtooth drives the fixed torsion plate to rotate forward through several pawls, and the inner cover is chained to drive forward rotation, so that the sealing surface of the inner cover is close to the After the upper edge of the sealed port is tightened to a predetermined torque, even if the outer cover continues to be rotated forward, the inner cover cannot continue to rotate because the inner cover has been tightened, so several pawls sequentially produce elastic deformation and shrink inward. It slips away from the matching sawtooth, and then produces elastic deformation and stretches outwards to restore the original shape after slipping. When it hits the next sawtooth, vibration and noise are generated, so as to remind the operator that the tightening has been completed, so that different operators can operate without worry. The same tightening degree and expected sealing effect can be obtained without using other tools, and its use method is consistent with that of conventional sealing caps, with simple structure and low cost.

Description of drawings

Fig. 1 is the structural explosion view of the utility model.

Fig. 2 is a structural schematic diagram of the inner cover of the present invention.

Fig. 3 is a structural sectional view of the inner cover in the present invention.

Fig. 4 is a schematic diagram of the structure of the fixed torsion disk in the utility model.

Fig. 5 is a schematic structural view of the outer cover in the present invention.

Fig. 6 is a structural sectional view of the utility model.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Figures 1-6, a constant torque sealing cap includes an inner cover 1, a constant torque disc 2 and an outer cover 3, the inner cover 1 includes an inner cover body 101, and the outer top surface of the inner cover body 101 has snap joints Seat 102, the clamping seat 102 is provided with a concave cavity 103 extending inwardly from its top surface; the fixed torque disc 2 includes a central disc body 201, and the central disc body 201 is set on the clamping seat 102, along the center disc body 201 There are four ratchets 202 that can produce elastic deformation on the four sides, and the tips of the four ratchets 202 face the tightening direction; the outer cover 3 includes an outer cover body 301, and the inner top surface of the outer cover body 301 has a snap-in concave The tab 303 in the cavity 103 prevents the inner cover 1 from being separated from the outer cover 3. The inner wall of the outer cover body 301 has serrations 302 arranged in a ring that match the four pawls 202. Tighten in the opposite direction.

It should be noted that there should be an appropriate gap between the upper surface of the fixed torsion plate 2 and the inner top surface of the outer cover 3 .

In the utility model, the middle part of the inner cover body 101 is sunken downwards to form a concave part 104, and the middle part of the bottom surface of the concave part 104 is raised upwards to form a raised part 105, and the inside of the inner cover body 101 is formed around the concave part 104. There is an annular several-shaped sealing cavity 106 , and the inner top surface of the annular several-shaped sealing cavity 106 is a sealing surface 107 . Thus, when the inner cover 1 is screwed tightly, the inner walls on both sides of the ring-shaped several-shaped sealing cavity 106 are respectively in contact with the inner and outer walls of the sealed port, and the sealing surface 107 is close to the upper edge of the sealed port, which can further improve the sealing performance. Sealing effect.

In the utility model, the inner wall of the inner cover body 101 is provided with an internal thread 108, which can be screwed on the mouth of a circular bottle, can or pipe provided with an external thread. Thus, the detachable connection of the entire sealing cap and the sealed port is realized.

In the present invention, the clamping seat 102 is integrally connected to the top surface of the raised portion 105 .

In the present utility model, the clamping seat 102 is a square seat.

In the present utility model, a square hole 203 is provided at the center of the central disk body 201 , and the central disk body 201 is fitted on the clamping seat 102 through the square hole 203 .

Thus, it is realized that the central disc body 201 is set on the clamping seat 102, and when the outer cover 3 is rotated, the fixed torsion disc 2 is driven to rotate through the matched four pawls 202 and the circularly arranged serrations 302, realizing chain drive Inner cover 1 rotates.

Below in conjunction with accompanying drawing, the utility model is further described:

When tightening, rotate the outer cover 3 forward (rotate clockwise), so that the serrated teeth 302 arranged in a ring drive the fixed torsion plate 2 to rotate forward through the four pawls 202, and drive the inner cover 1 to rotate forward in chains, so that The sealing surface 107 of the inner cover 1 is close to the upper edge of the sealed port. After tightening to a predetermined torque, even if the outer cover 3 continues to be rotated forward, the inner cover 1 cannot continue to rotate because the inner cover 1 has been tightened. Each ratchet 202 successively produces elastic deformation and shrinks inwardly, breaks away from each sawtooth matched with it and slips, then produces elastic deformation and stretches outwards to restore the original shape after slipping, and the next sawtooth collides to generate vibration and noise, so as to remind the operator to rotate The tightness has been realized, so that different operators can get the same tightening degree and expected sealing effect when operating.

When unscrewing, reversely rotate (rotate counterclockwise) the outer cover 3, so that the circularly arranged serrations 302 drive the fixed torsion plate 2 to rotate reversely through the four pawls 202, and drive the inner cover 1 to rotate reversely, thereby The entire sealing cap can be removed from the sealing port.

It should be noted that the four pawls 202 can be arranged on the upper surface of the central disc body 201, and correspondingly, the circularly arranged serrations 302 need to be arranged on the inner top surface of the outer cover body 301, while the fixed torsion plate 2 or the outer cover 3 The axial deformation can achieve the slip effect between the two. In addition, if the fixed torsion plate 2 is designed to rotate integrally with the outer cover 3 , the four ratchets 202 should be arranged on the side close to the top of the inner cover 1 , and the circularly arranged saw teeth 302 should be arranged on the top of the inner cover 1 .

In addition, the structure of the tab 303 on the outer cover 3 and the locking seat 102 of the inner cover 1 can also be changed into a structure of a slot and a protrusion. For example, the middle part of the inner top surface of the outer cover 301 has a cylinder, and its end is provided with an annular protrusion, which is snapped into the slot on the snap-in seat 102 on the top surface of the inner cover 101, so as to prevent the inner cover 1 and The outer cover 3 is separated.

Although this description is described according to the implementation mode, not each implementation mode only includes an independent technical solution. This description in the description is only for the sake of clarity. Those skilled in the art should take the description as a whole. The technical solutions can also be properly combined to form other implementations that can be understood by those skilled in the art.

Therefore, the above descriptions are only preferred embodiments of the present application, and are not intended to limit the scope of implementation of the present application; that is, all equivalent transformations made according to the scope of the claims of the present application are within the protection scope of the claims of the present application. .

Claims (6)

1. A constant torque sealing cap, comprising an inner cover, a constant torque disc and an outer cover, characterized in that: the inner cover includes an inner cover, and the outer top surface of the inner cover has a snap-in seat , the clamping seat is provided with a concave cavity extending inwardly from its top surface; the fixed torque disc includes a central disc body, and the central disc body is sleeved on the clamping seat, along the center There are several pawls that can produce elastic deformation around the disc body, and the tips of the several pawls face the tightening direction; the outer cover includes an outer cover body, and the inner top surface of the outer cover body has As for the tongue that is inserted into the concave cavity, the inner wall of the outer cover has serrations arranged in a ring that cooperate with the plurality of pawls, and the teeth direction of the serrations arranged in a ring is opposite to the tightening direction. 2. A constant torque sealing cap according to claim 1, characterized in that: the middle part of the inner cover body is sunken downwards to form a depression, and the middle part of the bottom surface of the depression is raised upwards to form a protrusion part, the inside of the inner cover is formed with a ring-shaped several-shaped sealing cavity around the concave part, and the inner top surface of the ring-shaped several-shaped sealing cavity is a sealing surface. 3. A constant torque sealing cap according to claim 2, characterized in that: the inner wall of the inner cap body is provided with an internal thread, which can be screwed into the circular bottle, can or tube provided with an external thread. mouth. 4 . The constant torque sealing cap according to claim 2 , wherein the clamping seat is integrally connected to the top surface of the raised portion. 4 . 5. A constant torque sealing cap according to claim 1, characterized in that: the clamping seat is a square seat. 6. A constant torque sealing cap according to claim 5, characterized in that: a square hole is provided at the center of the central disk body, and the central disk body is fitted on the clamping seat through the square hole .

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