Sealing device for production of steel lining plastic storage tank

Abstract

The utility model discloses a sealing device for steel lining plastic storage tank production, which comprises a fixed shell, a hydraulic telescopic rod and a sealing ring, the bottom of the hydraulic telescopic rod penetrates to the bottom of the fixed shell, the piston end of the hydraulic telescopic rod is fixedly connected with the top of the sealing ring, and the top of the surface of the hydraulic telescopic rod is sleeved with a protective cover. The protective cover is arranged, the protective cover is arranged on the upper half portion of the hydraulic telescopic rod in a sleeving mode, then a user connects the mounting plate and the fixing shell through bolts, then impact force is blocked through the protective cover, and therefore the hydraulic telescopic rod is protected; the problems that after a hydraulic telescopic rod is adopted to drive and seal a sealing ring, part of the hydraulic telescopic rod is exposed out of a fixing shell, if the exposed part of the hydraulic telescopic rod is collided by foreign matter, the hydraulic telescopic rod is damaged, liquid leakage occurs, and the sealing effect is lost are solved, and the auxiliary protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel-lined plastic storage tank sealing, in particular to a sealing device used for the production of steel-lined plastic storage tanks. Background Art

[0002] Steel-lined plastic storage tank, also known as tortoise shell lined storage tank, is the essence of steel-plastic composite series products. It adopts a special rotational molding process. It welds the steel mesh to the surface of the steel body. It uses pure polyethylene, linear low-density polyethylene LLDPE and high-density polyethylene HDPE as raw materials. The rotational molding process is used to organically combine the steel plate, steel mesh and polyethylene into one. The steel-lined plastic storage tank has the advantages of no welding seams, no leakage, non-toxicity, anti-aging, impact resistance, corrosion resistance, long life, and compliance with hygiene standards. The steel-lined plastic storage tank is a storage device with strong rigidity, pressure resistance and temperature resistance. After welding, the steel-lined plastic storage tank needs to be sealed inside.

[0003] For example, the application number is: CN202122141519.X. The utility model discloses a sealing device for the production of steel-lined plastic storage tanks, which belongs to the technical field of steel-lined plastic storage tank production. The key points of its technical solution include a steel-lined plastic storage tank body, a support block is arranged on the surface of the steel-lined plastic storage tank body, and the front and rear sides of the steel-lined plastic storage tank body are fixedly connected with annular blocks, and the inner cavity of the annular block is movably connected with a fixed shell, and the inner cavity of the fixed shell is provided with a sealing mechanism; the sealing mechanism includes a hydraulic telescopic rod, a push plate, two guide plates, two sealing rings and two sealing grooves, which solves the problem that the existing steel-lined plastic storage tank needs to be sealed after welding is completed, and the existing operation is mostly clamped by the sealing ring, which is not easy to pull out and the operation is cumbersome. There is a lack of a device for automatically sealing the steel-lined plastic storage tank that has not been fully processed, and at the same time, the bottom stability of the steel-lined plastic storage tank is poor, and there is a lack of certain auxiliary support devices to increase the bottom stability.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it is found that when the above equipment is used, although it can solve the problems of the existing clamping by sealing rings, difficult installation and removal, and cumbersome operation, but during use, after the hydraulic telescopic rod is used to drive the sealing ring to seal, part of the hydraulic telescopic rod is exposed outside the fixed shell. If the exposed part of the hydraulic telescopic rod is hit by foreign objects, the hydraulic telescopic rod will be damaged, resulting in leakage and loss of sealing effect. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a sealing device for the production of steel-lined plastic storage tanks, which has the advantage of auxiliary protection and solves the problem that after the hydraulic telescopic rod is used to drive the sealing ring to seal, part of the hydraulic telescopic rod is exposed outside the fixed shell. If the exposed part of the hydraulic telescopic rod is hit by foreign objects, the hydraulic telescopic rod will be damaged, resulting in leakage and loss of sealing effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing device for the production of steel-lined plastic storage tanks, comprising a fixed shell, a hydraulic telescopic rod and a sealing ring, the bottom of the hydraulic telescopic rod penetrates to the bottom of the fixed shell, the piston end of the hydraulic telescopic rod is fixedly connected to the top of the sealing ring, a protective cover is provided on the top of the surface of the hydraulic telescopic rod, the front and rear sides of the bottom of the protective cover are fixedly connected with mounting plates, the top of the mounting plate is threaded with bolts, the mounting plate is fixedly connected to the top of the fixed shell by bolts, both sides of the protective cover are fixedly connected to limiting mechanisms, and both sides of the protective cover are fixedly connected with handles.

[0007] As a preferred embodiment of the utility model, the limiting mechanism includes a limiting sleeve, the inner side of the limiting sleeve is fixedly connected to the two sides of the protective cover, the internal sliding connection of the limiting sleeve is a limiting slide rod, the bottom of the limiting slide rod is fixedly connected to the two sides of the top of the fixed shell, and the top of the limiting slide rod is fixedly connected to the limiting plate.

[0008] As a preferred embodiment of the utility model, a buffer sleeve is provided on the top of the protective cover surface, and side buffer pads are provided on the bottom of the protective cover surface. Six side buffer pads are provided and are distributed equidistantly in a ring shape.

[0009] As a preferred embodiment of the utility model, the inner side of the side cushion is fixedly connected with a first Velcro, the inner side of the first Velcro is adhered with a second Velcro, and the inner side of the second Velcro is fixedly connected to the bottom of the protective cover surface.

[0010] As a preferred embodiment of the utility model, a buckle groove is provided on the top of the side buffer pad, and a hexagonal groove is provided on the top of the bolt.

[0011] As a preferred embodiment of the utility model, a damper is fixedly connected to the top of the inner wall of the buffer sleeve, and six dampers are provided and distributed in a ring shape with equal distances.

[0012] As a preferred embodiment of the utility model, a force equalizing plate is provided inside the buffer sleeve, and the top of the force equalizing plate is fixedly connected to the bottom of the damper.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model provides a protective cover, which is sleeved on the upper part of the hydraulic telescopic rod. Then the user uses bolts to connect the mounting plate and the fixed shell, and then uses the protective cover to block the impact force, thereby protecting the hydraulic telescopic rod. The utility model solves the problem that after the hydraulic telescopic rod is used to drive the sealing ring to seal, part of the hydraulic telescopic rod is exposed outside the fixed shell. If the exposed part of the hydraulic telescopic rod is hit by foreign objects, the hydraulic telescopic rod will be damaged, resulting in leakage and loss of sealing effect, thereby achieving the effect of auxiliary protection.

[0015] 2. The utility model provides a limit mechanism, which is convenient for the user to use the active cooperation between the limit sleeve and the limit slide bar after completing the inspection and maintenance of the hydraulic telescopic rod, so as to limit the moving trajectory of the protective cover in the front, back, left and right directions, so that the protective cover can move downward along the path of the limit slide bar when driving the mounting plate to move downward. At this time, the bolts on the mounting plate can directly fit with the corresponding mounting screw holes, thereby improving the installation efficiency of the protective cover. At the same time, the limit plate can be used to limit the maximum activity space of the protective cover to prevent the protective cover from driving the limit sleeve to separate from the limit slide bar when moving upward.

[0016] 3. The utility model provides a buffer sleeve, so that when the top of the protective cover surface is hit by foreign objects, the impact force generated can be buffered by the buffer sleeve, and then the remaining impact force can be transmitted to the protective cover. Then, the side buffer pads can be provided to buffer the impact force received by the side of the protective cover, and then the remaining impact force can be transmitted to the protective cover, thereby further improving the protective effect of the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is an exploded schematic diagram of the parts of the fixed shell of the utility model;

[0019] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 4 For this utility model Figure 2 Enlarged structural diagram at B in the middle.

[0021] In the figure: 1. fixed shell; 2. hydraulic telescopic rod; 3. sealing ring; 4. protective cover; 5. mounting plate; 6. bolt; 7. limiting mechanism; 71. limiting sliding sleeve; 72. limiting sliding rod; 73. limiting plate; 8. handle; 9. buffer sleeve; 10. side buffer pad; 11. first Velcro; 12. second Velcro; 13. buckle groove; 14. hexagonal groove; 15. damper; 16. force equalizing plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 4 As shown, the utility model provides a sealing device for the production of steel-lined plastic storage tanks, including a fixed shell 1, a hydraulic telescopic rod 2 and a sealing ring 3. The bottom of the hydraulic telescopic rod 2 penetrates to the bottom of the fixed shell 1, and the piston end of the hydraulic telescopic rod 2 is fixedly connected to the top of the sealing ring 3. A protective cover 4 is sleeved on the top of the surface of the hydraulic telescopic rod 2. The front and rear sides of both sides of the bottom of the protective cover 4 are fixedly connected with mounting plates 5. The top of the mounting plate 5 is threadedly connected with bolts 6. The mounting plate 5 is fixedly connected to the top of the fixed shell 1 through the bolts 6. The two sides of the protective cover 4 are fixedly connected to the limiting mechanism 7, and the two sides of the protective cover 4 are fixedly connected to the handles 8.

[0024] refer to Figure 2 The limiting mechanism 7 includes a limiting sliding sleeve 71, the inner side of the limiting sliding sleeve 71 is fixedly connected to the two sides of the protective cover 4, the internal sliding connection of the limiting sliding sleeve 71 is a limiting sliding rod 72, the bottom of the limiting sliding rod 72 is fixedly connected to the two sides of the top of the fixed shell 1, and the top of the limiting sliding rod 72 is fixedly connected to the limiting plate 73.

[0025] As a technical optimization scheme of the present invention, by setting the limit mechanism 7, the user can use the active cooperation between the limit sleeve 71 and the limit slide bar 72 to limit the moving trajectory of the protective cover 4 front, back, left and right after the inspection and maintenance of the hydraulic telescopic rod 2 is completed, so that the protective cover 4 can move downward along the path of the limit slide bar 72 when driving the mounting plate 5 to move downward. At this time, the bolts 6 on the mounting plate 5 can directly fit with the corresponding mounting screw holes, thereby improving the installation efficiency of the protective cover 4. At the same time, the limit plate 73 can be used to limit the maximum activity space of the protective cover 4 to prevent the protective cover 4 from driving the limit sleeve 71 to separate from the limit slide bar 72 when moving upward.

[0026] refer to Figure 1 A buffer sleeve 9 is provided on the top of the surface of the protective cover 4, and a side buffer pad 10 is provided on the bottom of the surface of the protective cover 4. Six side buffer pads 10 are provided and are distributed in a circular shape with equal distances.

[0027] As a technical optimization scheme of the utility model, by setting the buffer sleeve 9, the impact force generated when the top of the surface of the protective cover 4 is hit by foreign objects can be buffered by the buffer sleeve 9, and then the remaining impact force can be transmitted to the protective cover 4. Then, by setting the side buffer pad 10, the impact force of the side of the protective cover 4 can be buffered, and then the residual impact force can be transmitted to the protective cover 4, thereby further improving the protective effect of the protective cover 4.

[0028] refer to Figure 2 The inner side of the side cushion pad 10 is fixedly connected with a first Velcro 11 , the inner side of the first Velcro 11 is adhered with a second Velcro 12 , and the inner side of the second Velcro 12 is fixedly connected with the bottom of the surface of the protective cover 4 .

[0029] As a technical optimization scheme of the utility model, by setting the first Velcro 11 and the second Velcro 12, when the side cushion pad 10 is damaged after long-term use and needs to be replaced, the user can directly tear off the corresponding side cushion pad 10, so that the side cushion pad 10 drives the corresponding first Velcro 11 and the second Velcro 12 to separate, and then stick the first Velcro 11 and the corresponding second Velcro 12 on the new side cushion pad 10, so as to quickly install the new side cushion pad 10.

[0030] refer to Figure 4 A buckle groove 13 is provided at the top of the side cushion pad 10 , and a hexagonal groove 14 is provided at the top of the bolt 6 .

[0031] As a technical optimization solution of the utility model, by providing a buckle groove 13, when the user needs to tear off the side cushion pad 10, the user can tear it downward by buckling the buckle groove 13, which will then drive the side cushion pad 10 to be torn off, giving the user a fulcrum for applying force to the side cushion pad 10. By providing a hexagonal groove 14, the user can use an internal hexagonal wrench to rotate the bolt 6 when there is no external hexagonal wrench.

[0032] refer to Figure 2 A damper 15 is fixedly connected to the top of the inner wall of the buffer sleeve 9. Six dampers 15 are arranged and are distributed in an annular shape at equal distances.

[0033] As a technical optimization solution of the utility model, by setting the damper 15, after the user receives the impact force at the top of the buffer sleeve 9 and performs the first step of buffering, the damper 15 can be used to damp the impact force transmitted from the top of the buffer sleeve 9, so that the residual impact force is transmitted to the protective cover 4 and protection is performed, thereby further improving the protection strength.

[0034] refer to Figure 2 A force equalizing plate 16 is disposed inside the buffer sleeve 9 , and the top of the force equalizing plate 16 is fixedly connected to the bottom of the damper 15 .

[0035] As a technical optimization solution of the utility model, by setting up a force equalizing plate 16, when the user uses the damper 15 to damp the impact, the damper 15 contacts the top of the protective cover 4 through the force equalizing plate 16, thereby increasing the contact area between the damper 15 and the protective cover 4 and avoiding the situation where the top of the protective cover 4 is damaged due to the low contact area.

[0036] The working principle and use process of the utility model are as follows: when the user needs to use the protective cover 4 to protect the upper part of the hydraulic telescopic rod 2, the user can set the protective cover 4 on the upper part of the hydraulic telescopic rod 2, and then the user uses the bolt 6 to connect the mounting plate 5 with the fixing shell 1, so as to fix the protective cover 4. If a foreign object hits the upper part of the hydraulic telescopic rod 2, the protective cover 4 can be used to block the impact force. When the user needs to inspect and maintain the hydraulic telescopic rod 2 regularly, the user can loosen the bolt 6 so that the protective cover 4 is no longer fixed, and then the user can move the protective cover 4 upward to release the upper part of the hydraulic telescopic rod 2. The locking cam 72 is used to lock the locking cam 71 in the locking cam 76. The locking cam 72 is used to lock the locking cam 76. When the locking cam 76 is in the unlocked position, the locking cam 72 is unlocked.

[0037] To sum up: the sealing device used for the production of steel-lined plastic storage tanks, by setting a protective cover 4, the protective cover 4 is sleeved on the upper part of the hydraulic telescopic rod 2, and then the user uses bolts 6 to connect the mounting plate 5 with the fixed shell 1, and then uses the protective cover 4 to block the impact force, thereby protecting the hydraulic telescopic rod 2, and solves the problem that after the hydraulic telescopic rod is used to drive the sealing ring to seal, part of the hydraulic telescopic rod is exposed outside the fixed shell. If the exposed part of the hydraulic telescopic rod is bumped by foreign objects, the hydraulic telescopic rod will be damaged, resulting in leakage and loss of sealing effect.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing device for use in the production of steel-lined plastic storage tanks, comprising a fixed shell (1), a hydraulic telescopic rod (2) and a sealing ring (3), characterized in that: The bottom of the hydraulic telescopic rod (2) penetrates the bottom of the fixed shell (1), the piston end of the hydraulic telescopic rod (2) is fixedly connected to the top of the sealing ring (3), the top of the surface of the hydraulic telescopic rod (2) is sleeved with a protective cover (4), the front and rear sides of the bottom of the protective cover (4) are fixedly connected to mounting plates (5), the top of the mounting plate (5) is threadedly connected to a bolt (6), the mounting plate (5) is fixedly connected to the top of the fixed shell (1) through the bolt (6), both sides of the protective cover (4) are fixedly connected to a limiting mechanism (7), and both sides of the protective cover (4) are fixedly connected to a handle (8).

2. A sealing device for use in the production of steel-lined plastic storage tanks according to claim 1, characterized in that: The limiting mechanism (7) comprises a limiting sliding sleeve (71), the inner side of the limiting sliding sleeve (71) is fixedly connected to two sides of the protective cover (4), the inner side of the limiting sliding sleeve (71) is slidably connected to a limiting sliding rod (72), the bottom of the limiting sliding rod (72) is fixedly connected to two sides of the top of the fixed shell (1), and the top of the limiting sliding rod (72) is fixedly connected to a limiting plate (73).

3. A sealing device for use in the production of steel-lined plastic storage tanks according to claim 1, characterized in that: The top of the surface of the protective cover (4) is provided with a buffer cover (9), and the bottom of the surface of the protective cover (4) is provided with side buffer pads (10), and six side buffer pads (10) are provided and distributed in a circular shape with equal distances.

4. A sealing device for use in the production of steel-lined plastic storage tanks according to claim 3, characterized in that: The inner side of the side cushion pad (10) is fixedly connected to a first Velcro (11), the inner side of the first Velcro (11) is adhered to a second Velcro (12), and the inner side of the second Velcro (12) is fixedly connected to the bottom of the surface of the protective cover (4).

5. A sealing device for use in the production of steel-lined plastic storage tanks according to claim 4, characterized in that: A buckle groove (13) is provided on the top of the side buffer pad (10), and a hexagonal groove (14) is provided on the top of the bolt (6).

6. A sealing device for use in the production of steel-lined plastic storage tanks according to claim 3, characterized in that: A damper (15) is fixedly connected to the top of the inner wall of the buffer sleeve (9), and six dampers (15) are arranged and distributed in an annular shape at equal distances.

7. A sealing device for use in the production of steel-lined plastic storage tanks according to claim 6, characterized in that: A force equalizing plate (16) is arranged inside the buffer sleeve (9), and the top of the force equalizing plate (16) is fixedly connected to the bottom of the damper (15).

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