TWM598110U - Container liner replacement locking device - Google Patents

Abstract

A locking device for container liner replacement, in order to provide a drinking container. After the combined liner is replaced, a high-pressure combined force is generated by the elastic effect to lock the liner in a stable position. The locking device mainly uses an elastic force of compression The ring is clamped between a mineral inner liner and a cylinder in a filling combination. Through a spinning action of a tandem lock ring, the compression ring generates a strong elastic reaction force to provide pressure between the components Connect and lock the assembly.

Description

Container liner replacement locking device

A container liner replacement locking device, in order to provide a drinking container, after the combined liner is replaced, the locking device that locks the liner in a stable position by elastic effect, mainly utilizes the elastic force of a bunch of pressure ring parts, through a series of The locking and pressing action of the lock ring generates an elastic high-pressure combination force to firmly integrate the mineral liner in the cylinder. When the series lock ring is retracted, the mineral liner can be replaced.

In the leisure of outdoor activities, for the temperature preservation of food or beverages, a variety of thermal insulation container designs have been introduced. The thermal insulation container is based on the insulation effect to maintain the temperature of the food or beverage. In the early design, the inner container of the container is made of metal Or plasticized material, can not resist the various chemical properties of food such as acid, alkali or salt, so there is also Teflon coated on the surface of the metal liner as a basis for acid and alkali resistance, but the Teflon coating is brushed The layers will wear.

Taiwan Patent No. 103212060 provides a thermos cup with a ceramic inner container. The structure of the thermos cup has an outer bottle body on the periphery of the main body, a ceramic inner container in the inner space, and an upper ring opening on the upper edge of the ceramic inner container. The mouth edge of the ceramic liner is assembled closely. The combination method is that after the sleeve is connected, it is inconvenient to squeeze the combination due to the fragility of the ceramic. During use, when the ceramic liner is subjected to external force, Will absorb shock waves and rupture.

The thermos bottle design with ceramic liner is common again. Although there is a replaceable design, there is no design with an effective combination of safety protection.

A container liner replacement locking device, in order to provide a drinking container, after the combined liner is replaced, a locking device that locks the liner stably in place by an elastic effect, mainly using a compression ring with elastic force to fill The in-combination method clamps a mineral liner and a cylinder body, and acts on the compression ring through the spinning action of a series connection lock ring, so that the compression ring has a strong reaction force to obtain the elastic compression The main purpose is to lock the basis of the assembly.

Another purpose of this creation is that the outer surface of the cylinder body is a screw joint, the inner circle of the screw joint is a sleeve plane, the inner bottom radial ring of the sleeve plane is provided with an inner shoulder plane, and the upper part of the serial lock ring is a cover joint Screw thread, the lower part is a locking part, the inner circle of the locking part is provided with an inner thread, the top of the inner thread is provided with a lower pressure inner shoulder, and the inner thread screw connection lead, in order to meet the pressure of the inner shoulder, the pressure can be reliably lowered The pressure ring member, the pressure ring member for the bundle is really stressed.

The third purpose of this creation is that the upper end surface of the clamping ring is the surface of all buckle structures, and the lower pressing inner shoulder of the series connection lock ring is equipped with opposite cutting teeth, which can be connected by mechanical buckle. The end of the screw connection between the lock ring and the cylinder is fixed.

The fourth purpose of this creation is to provide a protruding buckle at the front or rear end of the spin line of the screwing part of the cylinder body, and to provide a protruding buckle inside the inner thread of the tandem lock ring relative to the position of the buckle The elastic buckle groove, when the two are combined to reach the end of the lock and press, the convex buckle and can be cut by the elastic buckle groove and buckle, and the screw connection angle of the series lock ring relative to the cylinder body can be fixed without changing. It locks the corner position.

10‧‧‧Cylinder

11‧‧‧Axle space

12‧‧‧Spinning part

13‧‧‧Inner shoulder plane

14‧‧‧Protrusion

15‧‧‧Lined tube

16‧‧‧Show outer tube

17‧‧‧Gasket

18‧‧‧Sleeve plane

19‧‧‧Port

20‧‧‧Mineral liner

21‧‧‧Loading space

22‧‧‧Open

23‧‧‧Radial pick ring

24‧‧‧Shock Tray

25‧‧‧Through the neck

30‧‧‧Compression ring

31‧‧‧Upper face

32‧‧‧ Next arrival

33‧‧‧Recessed ring

34‧‧‧External surface

311‧‧‧Notch Slot

310‧‧‧Cut button structure

40‧‧‧Tandem lock ring

41‧‧‧Cover screw thread

42‧‧‧Lock connection part

43‧‧‧Internal thread

44‧‧‧Elastic buckle slot

45‧‧‧Press down the inner shoulder

450‧‧‧Cutting teeth

50‧‧‧Cover body

51‧‧‧coat

52‧‧‧Inner components

53‧‧‧Sealing thread

54‧‧‧Sealing washer

55‧‧‧Heat resistance sleeve

56‧‧‧Inner cabin shell

57‧‧‧Heat resistance space

Figure 1 is an exploded side view of the structure of this creative container.

Figure 2 is one of the structural exploded side views of this creative container.

Figure 3 is a side view of this creative container assembly.

Figure 4 is a three-dimensional schematic diagram of the creation of the clamping ring.

Figure 5 is a schematic diagram of the creative tandem lock ring with cutting teeth.

Figure 6 is a schematic diagram of the relative position of the creative convex buckle and the elastic buckle groove.

Figure 7 is one of the schematic diagrams of the relative positions of the creative convex buckle and the elastic buckle groove.

Figure 8 is a working schematic diagram of the creation of a series-connected lock ring assembly cylinder linked to the elastic buckle groove to buckle the convex buckle.

A container liner replacement locking device, in order to provide a drinking container, after the combined liner is replaced, the locking device that locks the liner stably in place by the elastic effect, mainly uses a compression ring with elastic force to fill Clamping between a mineral inner liner and a cylinder through the in-combination method, through the spinning action of a tandem lock ring, the compression ring is reacted to obtain the basis for the elastic compression assembly. The upper surface of the cylinder is set It is a screw connection part, the inner circle of the screw connection part is a sleeve plane, the inner bottom radial ring of the sleeve plane is provided with an inner shoulder plane, and the upper part of the series connection lock ring is a cover screw, and the lower part is a lock connection Part, the inner circle of the locking part is provided with an inner thread, the inner thread is coaxially provided with a diameter smaller than the inner thread, the direction is downward to press the inner shoulder, and the total height of the inner thread is smaller than the total height of the screwed part, providing the inner thread screw The tooth lead can meet the extreme locking pressure.

In addition, the upper end surface of the compression ring member is the surface of the buckle structure, and the lower pressure inner shoulder of the series lock ring is provided with opposite cutting teeth to make the series lock ring and the cylinder body lock the ultimate position. A strong fixation can be obtained. The fixation method is further to provide a protruding buckle at the front or rear end position of the screw connection part of the cylinder body, and the inner screw of the series connection lock ring. The inside of the teeth is locked between the two, and an elastic buckle is provided relative to the position of the convex buckle. After the two are combined, the mechanical buckle positioning can be obtained, and the screw connection angle of the series locking ring relative to the cylinder can be fixed. Will change, fix its locking angle to ensure that the combination of components is firmly to avoid loosening.

For the implementation of this creation and its action functions, please refer to the illustration below:

First of all, please refer to Figure 1, a container liner replacement locking device, to provide a drinking container, after the combined liner is replaced, the locking device that locks the liner in place by the elastic effect, as shown in the illustration The container liner replacement locking device is exemplarily implemented as a cylinder 10, the upper end is a through opening 19, the through opening 19 communicates inward to form an axial space 11, and the upper end of the cylinder 10 is surrounded by a screw connection part 12, and A collar plane 18 is provided at a height position inside the axial space 11, underneath the collar plane 18 is a ring-shaped inner shoulder plane 13 with a radial plane, and the position of the collar plane 18 can be further set in the rotation The opposite inner surface of the connecting portion 12.

The main body of the cylinder 10 can be formed by a coaxial co-configuration combination of an inner lining cylinder 15 and an outer cylinder 16 to implement a heat-resistant structure.

A shock-absorbing gasket 17 can be attached to the outer bottom of the cylinder body 10, and a shock-absorbing tray 24 can be sleeved on the inner bottom of the axial space 11.

The axial space 11 is provided for the axial placement of a mineral liner 20. The inside of the mineral liner 20 is a loading space 21 connected to the outside through the opening 22. The outer circle of the opening 22 is a through neck 25, corresponding to the aforementioned The sleeve plane 18 and the inner shoulder plane 13 inside the cylinder 10 are provided with a radially protruding radial pick ring 23. The mineral inner liner 20 can be made of ceramic material, and the inner surface can be equipped with a physical energy wave emission The coating.

The radial pick-up ring 23 and the sleeve plane 18 are sleeved through a compression ring member 30 with elastic force. The upper end of the compression ring member 30 is the upper end surface 31, the lower end is the lower abutment surface 32, and the inner circle The surface corresponding to the shape of the radial pick ring 23 is annularly recessed with a sleeve concave ring 33. The sleeve concave ring 33 can cover the outer surface of the radial pick ring 23. The compression ring member 30 can generate a strong elastic reaction force when subjected to external force. The external force is formed by crimping and applying force by a series connection lock ring 40. The series connection lock ring 40 is provided with a cover screw 41 and a locking portion 42. The inner circle of the locking portion 42 forms an inner screw 43. The inner circle of the inner thread 43, with a smaller diameter, is provided with an annular downward pressing inner shoulder 45 with a downward port, and the function of lowering the inner shoulder 45 provides a pressure ring member 30 and a cover screw 41. The cover body 50 is covered to seal the opening 22 of the mineral liner 20. The cover screw 41 is provided to provide the through neck 25 of the mineral liner 20. The total height of the compression ring 30 is Greater than the total lead of the inner thread 43.

The cover 50 is provided with an outer sleeve 51, and an inner sleeve element 52 is lined inside. The lower end of the inner sleeve element 52 is provided with a sealing screw 53 at a position corresponding to the height of the cover screw 41. The cover 50 needs to have the same heat resistance effect on the outside. , It is necessary to provide an inner cabin shell 56 to form a heat-resistant space 57 inside. Furthermore, in order to allow the components to resist high temperatures, the outer surface of the inner cabin shell 56 can be covered with a heat-resistant heat-resistant sleeve 55, An annular sealing gasket 54 is provided at the upper end of the circumference of the cabin shell 56 corresponding to the sealing position of the opening 22 of the mineral liner 20 to provide sealing for sealing the opening 22 of the mineral liner 20.

Please refer to Figures 2 and 3 again. After the cover 50 unit is assembled, a heat-resistant space 57 is formed inside, and the sealing screw 53 on the inner circle of the lower part is screw-locked and prepared to lock the cover screw 41. The inner thread 43 of the locking portion 42 is the screwing portion 12 of the revolvably lockable cylinder 10.

Before assembling, first, the pocket ring 33 of the compression ring member 30 can be elastically deformed by the body of the compression ring member 30. The diameter can be changed across the radial pick ring 23 covering the mineral liner 20, and the bundle sleeve concave ring 33 covers the outer three surfaces of the radial pick ring 23, so that the mineral liner 20 and the compression ring 30 is initially assembled, the mineral liner 20 as a whole is axially sleeved into the shaft space 11 through the opening 19 of the cylinder 10, and then the outer circle of the compression ring member 30 abuts the sleeve plane 18, and the lower abutment surface 32 is Down to the plane of the inner shoulder plane 13.

The mineral liner 20 is fixed to the cylinder body 10 by means of the screw connection between the inner thread 43 provided at the lower end of the serial lock ring 40 and the cylinder body 10 during the locking process of the lock ring 40 and the cylinder body 10 in series. As a result of the lead displacement, the inner shoulder 45 is pressed down in conjunction with the inner shoulder 45. The inner shoulder 45 is pressed against the upper end surface 31 of the compression ring member 30. When the upper end surface 31 is pressed, a conductive force is generated, which is applied to the radial pick ring 23. Between the outer surface and the sleeve plane 18 and the inner shoulder plane 13 to make the compression force.

Please refer to Figure 3 again, the mineral liner 20 is a shaft sleeve inserted into the shaft space 11 of the cylinder 10, and the outer surface of the lower end of the mineral liner 20 can be pressed on the shock-absorbing tray 24. The shock-absorbing tray 24 is an elastic The element can support the lower end of the mineral inner liner 20 to maintain the axis line overlapping with the axis line of the cylinder body 10. After the lock ring 40 is screwed to the cylinder body 10 in series, the lower pressing inner shoulder 45 is used to press the upper end surface of the compression ring member 30 31. The compression ring member 30 is subjected to an external force to generate a strong elastic reaction force, which acts on the combined surface of each opposed element.

The inner thread 43 is provided at the lower end of the series connection lock ring 40, which is screwed to the screw connection part 12 of the combined cylinder body 10. The inner thread 43 is coaxially provided with a smaller diameter, and the port faces downward and presses the inner shoulder 45 and presses down the inner shoulder. 45 is linked by the lead change of the screw connection between the inner thread 43 and the screwed portion 12, and the result of the combination will be driven to press the upper end surface 31 of the compression ring 30, and the compression ring 30 transmits stress by its body structure, so that The reaction force of the solid angle position occurs, wherein the sleeve concave ring 33 generates a pressure to press the radial pick ring 23, and the lower abutment surface 32 generates a lower pressing force, pressing against the inner shoulder plane 13 of the cylinder 10, The outer circular surface 34 generates an outwardly expanding force to press the sleeve plane 18 of the cylinder body 10 through the three-dimensional azimuth elastic force of the compression ring member 30, that is, to press the radial pick ring 23 of the mineral inner liner 20, The mineral liner 20 is positioned at the inner position of the cylinder 10.

In addition, the upper end surface 31 of the compression ring member 30 is pressed down by the downward pressing inner shoulder 45, and the generated elastic reaction force exerts reverse pressure to generate a pressure amount on the downward pressing inner shoulder 45 and cause strong friction to stop The fixed series connection lock ring 40 is not easy to loosen, and the radial angular position of the series connection lock ring 40 is further achieved to achieve combined locking.

The cover screw 41 of the serial lock ring 40 is screwed by the sealing screw 53 of the cover 50. In the process of opening the cover 50, the friction force between the inner shoulder 45 and the upper end surface 31 is strong The elastic effect is much greater than the friction between the cover screw 41 and the sealing screw 53, so when the cover 50 is retracted, the torsion that occurs will not affect the change in the combined angular position of the series connection lock ring 40. The mineral liner 20 can be stably located in the barrel 10.

The above-mentioned use of the three-dimensional expansive reaction force generated by the elasticity of the compression ring member 30 by the external force can firmly fix the cylinder 10 and the mineral liner 20, and use the upper end surface 31 to connect the lower part of the lock ring 40 The strong elastic reaction force of the pressing inner shoulder 45 makes the friction force between the combination of the inner thread 43 of the lock ring 40 and the screw part 12 of the cylinder 10 greater than the sealing screw of the cover screw 41 and the cover 50 The teeth 53 are covered by friction, and when the cover 50 is unscrewed in use, its operating force will not affect the combined angle of the series connection lock ring 40 and the cylinder 10, and maintain the mineral inner liner 20 and the cylinder. The combination of 10 solid strength.

Please refer to Figure 4 and Figure 3 again. The compression ring member 30 is a single piece of elastic material. The upper end of the compression ring member 30 is the upper end surface 31, and the lower end is the lower abutment surface 32. The round watch is a flat outer round surface 34, and the inner round watch is recessed with a sleeve ring 33. The upper end surface 31 can be implemented as a structural body of the buckle structure 310, providing the lower pressing inner shoulder shown in Figure 3 When 45 is pressed down, the angular position can obtain the friction stopping force, which assists the friction stopping force of the upper end surface 31 on the pressing inner shoulder 45, ensuring that the series lock ring 40 will not be subjected to the retracting operation of the cover 50, and Affecting the diagonal position of the series connection lock ring 40 and the cylinder 10, the cut and buckle structure 310 can be any concave-convex structure, and further is provided with a vertical body parallel to the central radial line of the upper end surface 31. The notch 311 can absorb the stress and deformation that occurs on the surface when the inner shoulder 45 is pressed downward, so that the friction increase area between the inner shoulder 45 and the upper end surface 31 can be maximized.

Please cooperate with Fig. 5 again, according to the implementation of the above-mentioned cutting buckle structure 310 and the notch groove 311, at the position of the pressing inner shoulder 45 of the tandem lock ring 40, the notch groove 311 is parallel to the vertical direction shown in Fig. 4 , And provided with a protruding buckle tooth 450, the buckle tooth 450 can cut and bite on the elastic upper end surface 31, or cut on the concave and convex structure of the buckle structure 310, or cut buckle in the cut The groove body of the groove 311 increases the mechanical positioning effect, allowing the series connection lock ring 40 to rotate and cut the combined cylinder 10 (as shown in Figure 3), and the two opposite radial angular positions can be more fixedly assisted effect.

Please refer to Figures 6 and 7 again. This case further uses an explicit structure to assist locking, so as to align the lower or upper end of the inner thread 43 at the lower end of the revolving line of the inner thread 43 inside the locking portion 42 provided in the tandem lock ring 40. At the end position, an elastic buckle groove 44 is provided. The elastic buckle groove 44 is a recessed space and is integrally formed with the locking portion 42. The locking portion 42 can be elastic with a slight deformation elasticity, and can be linked with elasticity. The buckle groove 44 elastically changes its length in the radial direction.

The elastic buckle groove 44 can be screwed and buckled into a convex buckle 14 provided on the outer surface of the screwed portion 12 when the screwed part 12 of the serially connected lock ring 40 combined with the cylinder 10 reaches the locking result. The convex buckle 14 is fixed together. After the elastic buckle groove 44 is cut into the convex buckle 14 at a convex point at the front end or the tail end of the thread of the screw connection portion 12, it can be elastically buckled to fix the series connection lock ring 40.

The position of the convex buckle 14 is at the lower end or the upper end of the screw connection part 12, and the best angular position is the angular position when the series connection lock ring 40 is screwed to the cylinder 10 to reach the locking position. The elastic buckle groove 44 and the convex The buckle 14 is aligned, and the elastic buckle groove 44 is attached to the locking portion 42 and the locking portion 42 can be slightly elastically deformed. Therefore, the elastic buckle groove 44 can form an elastic cutting buckle, and finally snap into the convex buckle 14. The action of disengaging the series connection lock ring 40 needs to be strong, and the series connection lock ring 40 and the cylinder 10 are rotated and retracted against each other. The strong operation force is greater than the above-mentioned card The fastening force of the buckle.

The above-mentioned elastic buckle groove 44 can be a groove shape or any oblique wedge shape, and the wedge buckle method can also achieve the purpose of buckling.

Please refer to Figure 8 again, the bottom of the inner thread 43 of the lock ring 40 is provided with an elastic buckle groove 44. The elastic buckle groove 44 can be a recessed notch. The texture can be slightly elastically displaced. After the inner thread 43 is screwed to the screwed portion 12 of the cylinder 10, the elastic buckle groove 44 is driven by the turning direction, and finally corresponds to a fixed convex protrusion provided on the screwed portion 12 At the position of the buckle 14, the elastic buckle groove 44 can be elastically cut to buckle the convex buckle 14 by the slight change in the elasticity of the locking portion 42. If it stops, it is not easy to get off.

This invention creates a container liner replacement locking device, in order to provide a drinking container, after the combined liner is replaced, the locking device is used to lock the liner stably in place by the elastic effect. The main body is a compression ring with elastic effect. The pocket ring of the inner ring can be pivotally sleeved on the radial picking ring of the mineral inner liner, and the outer surface can be crimped on the plane of the sleeve of the barrel, and the inner shoulder can be locked under the pressure of the series lock ring. The amount of down force generated causes the compression ring to generate a three-dimensional elastic force, and the elastic force is reversed to form a strong crimping combination force, fixing the combination of the mineral liner and the cylinder, and using the bundle pressure The upper end surface of the ring has a strong frictional force against the down-pressed inner shoulder, which can firmly fix the mineral inner liner in place in the cylinder, and further have elastic buckle grooves at the front or rear end of the inner thread, and A convex buckle is provided at the front or rear end of the screw connection part of the barrel. When the locking reaches the limit, the two can be in an elastic buckle relationship, which mechanically fixes the diagonal position of the series connection lock ring and the barrel. , And let the inner shoulder of the downward pressure keep the compression ring member in substantial pressure, and the mineral inner liner is firmly fixed in the cylinder. This creation is an innovative design. Please ask your examiner to appraise it and grant the patent as soon as possible. .

10‧‧‧Cylinder

11‧‧‧Axle space

12‧‧‧Spinning part

13‧‧‧Inner shoulder plane

18‧‧‧Sleeve plane

20‧‧‧Mineral liner

23‧‧‧Radial pick ring

24‧‧‧Shock Tray

30‧‧‧Compression ring

31‧‧‧Upper face

32‧‧‧ Next arrival

33‧‧‧Recessed ring

34‧‧‧External surface

40‧‧‧Tandem lock ring

41‧‧‧Cover screw thread

43‧‧‧Internal thread

45‧‧‧Press down the inner shoulder

50‧‧‧Cover body

53‧‧‧Sealing thread

Claims (10)

A locking device for container liner replacement, to provide a drinking container, a locking device that locks the liner in a stable position by elastic effect after the combined liner is replaced, including: A cylinder body with a port at the upper end, the shaft guide leads to an inner shaft installation space, a sleeve plane is provided at a height of the inner surface of the shaft installation space, and an inner shoulder plane is provided on the inner bottom radial ring of the sleeve plane; A mineral inner liner, at a position relative to the plane of the bundle, a radial pick ring protrudes radially; An elastic compression ring member, the upper end is an upper end surface, the lower end is a lower abutment surface, the inner ring is provided with a sleeve concave ring that can sleeve the radial pick ring, The lower end can be axially locked to the series connection lock ring of the cylinder. The inner circle and the inner thread are coaxial. There is a diameter smaller than the inner thread. The port faces downward and presses the inner shoulder. The upper end is a cover thread for the Cover screw combination; After the combination, the downward pressing inner shoulder of the tandem lock ring exerts a force on the upper end surface of the pressing ring piece, and the elastic deformation force of the pressing ring piece forms a pressing force to lock the cylinder, mineral liner, and string The combination relationship between the locking ring and the reaction force generated by the upper end surface of the compression ring member makes the friction force with the inner shoulder of the downward pressure greater than the combined force of the screw connection between the cover screw and the cover body. As described in the first item of the scope of patent application, the container liner replacement locking device, wherein the upper surface of the cylinder body is a screw connection part, the inner circle of the screw connection part is a sleeve plane, and the inner bottom radial ring of the sleeve plane is provided with an inner shoulder The upper part of the plane and the series connection lock ring is a cover screw, and the lower part is a locking part. The inner circle of the locking part is provided with an inner thread. The top of the inner thread is provided with a lower pressure inner shoulder and the lead of the inner thread. It can be satisfied that the inner shoulder is pressed down and the pressure ring is surely pressed. In the container liner replacement locking device described in item 2 of the scope of patent application, the height of the compression ring member is greater than the total length of the screw connection part and the screw connection lead of the inner thread. In the container liner replacement locking device described in item 1 of the scope of patent application, a shock-absorbing tray is provided on the bottom surface of the axial space of the cylinder to support the bottom end of the mineral liner. For the container liner replacement locking device described in item 1 of the scope of patent application, the upper end surface of the compression ring member is the surface of the buckle structure, and the lower compression inner shoulder of the series locking ring is provided with opposite cut buckles tooth. As described in item 5 of the scope of patent application, the container liner replacement locking device, wherein the cut buckle structure is provided with a cut slot that is parallel to the radial line of the upper end surface. A locking device for container liner replacement, to provide a drinking container, a locking device that locks the liner in a stable position by elastic effect after the combined liner is replaced, including: A cylinder with an opening at the upper end, the shaft guide leads to an inner shaft space, and the upper surface is a screw connection part. The screw connection part is threaded at one position and is provided with a protruding buckle. The beam sleeve plane, the inner bottom radial ring of the beam sleeve plane is provided with an inner shoulder plane; A mineral inner liner, at a position relative to the plane of the bundle, a radial pick ring protrudes radially; An elastic beam compression ring, the upper end is an upper end surface, the lower end is a lower abutment surface, and the inner ring is provided with a beam sleeve concave ring that can sleeve the radial pick ring; The inner circle of the lower part is provided with an inner thread to axially lock the cylinder body with a series connection lock ring. The inner circle is coaxial with the inner thread, and a diameter smaller than the inner thread is provided. The port faces downward and presses the inner shoulder. The upper part is a cover The connecting thread is for the screwing combination of the cover body, and the inner thread corresponding to the above-mentioned convex buckle is provided with an elastic buckle groove that can elastically cut and buckle the convex buckle at the position where the cylinder body is locked with the tandem locking ring; After the combination, the downward pressing inner shoulder of the tandem lock ring exerts a force on the upper end surface of the pressing ring piece, and the elastic deformation force of the pressing ring piece forms a pressing force to lock the cylinder, mineral liner, and string The combination relationship between the lock ring and the positioning of the buckle and the elastic buckle groove to fix the lock ring and the cylinder Lock the corners between. As described in item 7 of the scope of patent application, the container liner replacement locking device, wherein the upper surface of the cylinder body is a screw connection part, the inner circle of the screw connection part is a sleeve plane, and the inner bottom radial ring of the sleeve plane is provided with an inner shoulder The upper part of the plane and the series connection lock ring is a cover screw, and the lower part is a lock part. The inner circle of the lock part is provided with an inner screw. The top of the inner screw is provided with a lower pressure inner shoulder. The total height of the inner screw is less than The total height of the screw joint. In the container liner replacement locking device described in item 8 of the scope of patent application, the height of the compression ring member is greater than the total length of the screw connection part and the screw connection lead of the inner thread. As described in item 7 of the scope of patent application, the container liner replacement locking device, wherein a shock-absorbing tray is provided on the bottom surface of the axial space of the cylinder to support the bottom end of the mineral liner.

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