A PTFE-lined tooling for PTFE-lined liquid level gauge

Abstract

The present invention provides a PTFE lining tooling for a PTFE lining liquid level gauge, comprising: a connecting sleeve, the connecting sleeve is provided with a mounting hole, the upper end of the connecting sleeve is suitable for connecting with the PTFE lining liquid level gauge, a pulling piece is provided in the mounting hole, and a first PTFE lining layer is provided between the outer surface of the pulling piece and the inner surface of the mounting hole; a connecting piece, the lower end of the connecting sleeve is detachably connected to the connecting piece, a second PTFE lining layer is provided in the connecting piece, and the second PTFE lining layer has a fixing hole; a fixing piece, the fixing piece is inserted into the fixing hole to avoid deformation of the second PTFE lining layer. The PTFE lining tooling provided by the present invention: is connected to the PTFE lining liquid level gauge through the connecting sleeve, thereby making the connection between the PTFE lining tooling and the PTFE lining liquid level gauge more stable, and avoiding leakage of the medium in the PTFE lining liquid level gauge. At the same time, the connecting sleeve is detachably connected to the connecting piece, thereby making the connection between the components more convenient and easier to adjust, thereby achieving the effect of simple operation and saving work time.

Description

Technical Field

[0001] The invention relates to the technical field of anti-corrosion liquid level gauges, and in particular to a polytetrafluoroethylene lining tooling for polytetrafluoroethylene lining liquid level gauges. Background Art

[0002] At present, in the production process of petrochemical enterprises, there are corrosive strong acids, strong alkalis, and strong oxidants in the tanks, boilers, reactors, etc. on site, and the liquid level height needs to be measured with anti-corrosion level gauges made of PTFE lined tooling. The original anti-corrosion level gauges were made by directly connecting PTFE pipes, which were prone to insufficient welding and gaps after cooling, resulting in leakage of corrosive media and safety risks; the surface welding was uneven, and when there were many impurities in the medium, it was easy to get blocked, resulting in the level gauge not being able to be used normally.

[0003] Therefore, it is necessary to develop a PTFE-lined tooling for a PTFE-lined liquid level gauge to solve the above problems through structural settings. Summary of the invention

[0004] The purpose of the invention is to provide a polytetrafluoroethylene lining tooling for a polytetrafluoroethylene lining liquid level gauge, so as to make the structure of the polytetrafluoroethylene lining liquid level gauge more stable.

[0005] The above-mentioned purpose of the present invention can be achieved by adopting the following technical solutions:

[0006] The present invention provides a polytetrafluoroethylene-lined tooling for a polytetrafluoroethylene-lined liquid level gauge, comprising:

[0007] A connecting sleeve, wherein the connecting sleeve is provided with a mounting hole, the upper end of the connecting sleeve is suitable for connecting with the PTFE-lined liquid level gauge, a drawing piece is provided in the mounting hole, and a first PTFE-lined layer is provided between the outer surface of the drawing piece and the inner surface of the mounting hole;

[0008] A connecting piece, the lower end of the connecting sleeve is detachably connected to the connecting piece, a second PTFE lining layer is provided in the connecting piece, and the second PTFE lining layer has a fixing hole;

[0009] A fixing piece is inserted into the fixing hole to prevent the second lining polytetrafluoroethylene layer from being deformed.

[0010] In some embodiments of the present invention, a screw sleeve is further included, the lower end of the pulling member is threadedly connected to the screw sleeve so that the screw sleeve abuts against the connecting sleeve, and the upper end of the connecting member is threadedly connected to the screw sleeve.

[0011] In some embodiments of the present invention, the pulling member includes a pulling head and a pulling connection portion connected to the lower end of the pulling head, the pulling connection portion is threadedly connected to the threaded sleeve, and the pulling head is arranged in the mounting hole.

[0012] In some embodiments of the present invention, the diameter of the pulling head gradually decreases from top to bottom, and the pulling head cooperates with the connecting sleeve so that the pulling member presses the connecting sleeve onto the threaded sleeve.

[0013] In some embodiments of the present invention, the fixing member includes a fixing rod, which is inserted into the fixing hole. A limit head is provided at the lower end of the fixing rod, and the limit head abuts against the lower end of the connecting member to fix the fixing rod in the fixing hole.

[0014] In some embodiments of the present invention, a fixing nut is threadedly connected to the upper end of the fixing rod, and the fixing nut abuts against the upper end of the connecting member.

[0015] In some embodiments of the present invention, the second PTFE lining layer includes an upper flange, a middle portion and a lower flange, the upper flange is connected to the upper end of the middle portion, the lower flange is connected to the lower end of the middle portion, the middle portion is arranged in the connecting piece, the upper flange abuts against the upper end of the connecting piece, and the lower flange abuts against the lower end of the connecting piece.

[0016] In some embodiments of the present invention, an anti-loosening member is further included, wherein the upper end of the anti-loosening member is threadedly connected to the screw sleeve, and the lower end of the anti-loosening member is threadedly connected to the connecting member, and a sealing member is provided between the anti-loosening member, the screw sleeve and the connecting member.

[0017] In some embodiments of the present invention, a transition piece is further included, the lower end of the transition piece is threadedly connected to the connecting sleeve, and the upper end of the transition piece is suitable for being threadedly connected to the PTFE-lined liquid level gauge.

[0018] In some embodiments of the present invention, the connecting sleeve is snap-connected to the connecting member.

[0019] The characteristics and advantages of the PTFE lining tooling for the PTFE lining liquid level gauge of the present invention are: it is connected to the PTFE lining liquid level gauge through a connecting sleeve, thereby making the connection between the PTFE lining tooling and the PTFE lining liquid level gauge more stable, thereby avoiding leakage of the medium in the PTFE lining liquid level gauge.

[0020] At the same time, the connecting sleeve is detachably connected to the connecting piece, thereby making the connection between the components more convenient and easier to adjust, thereby achieving the effect of simple operation and saving work time.

[0021] In addition, the fixing piece is inserted into the fixing hole of the second PTFE lining layer to prevent the second PTFE lining layer from deforming after cooling, so as to make the structure of the PTFE lining tooling more stable and reduce the difficulty of making the PTFE lining layer to achieve the purpose of cost saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic diagram of a polytetrafluoroethylene-lined tooling according to an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of a connecting member according to an embodiment of the present invention;

[0025] Figure 3 is a schematic diagram of a drawing piece according to an embodiment of the present invention;

[0026] Figure 4 It is a schematic diagram of another embodiment of a polytetrafluoroethylene-lined tooling according to an embodiment of the present invention.

[0027] Description of Figure Numbers:

[0028] 1. Connecting sleeve;

[0029] 2. Drawing piece; 21. Drawing head; 22. Drawing connection part;

[0030] 3. The first lining polytetrafluoroethylene layer;

[0031] 4. Connecting piece; 41. Second PTFE lining layer; 42. Upper flange; 43. Middle part; 44. Lower flange;

[0032] 5. Screw sleeve;

[0033] 6. Fixing piece; 61. Fixing rod; 62. Limiting head; 63. Fixing nut;

[0034] 7. Anti-loosening parts; 71. Sealing parts;

[0035] 8. Adapter. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Embodiment 1:

[0040] like Figures 1 to 3 As shown, the present invention provides a PTFE lining tool for a PTFE lining liquid level gauge, comprising: a connecting sleeve 1, the connecting sleeve 1 is provided with a mounting hole, the upper end of the connecting sleeve 1 is suitable for connecting with the PTFE lining liquid level gauge, a drawing piece 2 is provided in the mounting hole, and a first PTFE lining layer 3 is provided between the outer surface of the drawing piece 2 and the inner surface of the mounting hole; a connecting piece 4, the lower end of the connecting sleeve 1 is detachably connected to the connecting piece 4, the connecting piece 4 is provided with a second PTFE lining layer 41, and the second PTFE lining layer 41 has a fixing hole; a fixing piece 6, the fixing piece 6 is inserted in the fixing hole to avoid deformation of the second PTFE lining layer 41. Preferably, the first PTFE lining layer 3 is 1 mm, and the second PTFE lining layer 41 is 3 mm.

[0041] The PTFE lining tooling for the PTFE lining liquid level gauge of the present invention is connected to the PTFE lining liquid level gauge via a connecting sleeve 1, thereby making the connection between the PTFE lining tooling and the PTFE lining liquid level gauge more stable, thereby preventing leakage of the medium in the PTFE lining liquid level gauge.

[0042] At the same time, the connecting sleeve 1 is detachably connected to the connecting member 4, thereby making the connection between the components more convenient and easier to adjust, thereby achieving the effect of simple operation and saving work time.

[0043] In addition, the fixing member 6 is inserted into the fixing hole of the second PTFE lining layer 41 to prevent the second PTFE lining layer 41 from deforming after cooling, so as to make the structure of the PTFE lining tooling more stable and reduce the difficulty of making the PTFE lining layer to achieve the purpose of cost saving.

[0044] In some embodiments of the present invention, a screw sleeve 5 is further included, the lower end of the puller 2 is threadedly connected to the screw sleeve 5 so that the screw sleeve 5 abuts against the connecting sleeve 1, and the upper end of the connecting member 4 is threadedly connected to the screw sleeve 5. The components are connected by threads, so that the connection structure is simpler and more reliable.

[0045] In some embodiments of the present invention, the drawing member 2 includes a drawing head 21 and a drawing connection portion 22 connected to the lower end of the drawing head 21, the drawing connection portion 22 is threadedly connected to the screw sleeve 5, and the drawing head 21 is arranged in the mounting hole, so as to facilitate the connection between the drawing member 2 and the screw sleeve 5, thereby simplifying the structure.

[0046] In some embodiments of the present invention, the diameter of the pulling head 21 gradually decreases from top to bottom, and the pulling head 21 cooperates with the connecting sleeve 1 so that the pulling member 2 presses the connecting sleeve 1 onto the screw sleeve 5. Thus, through the threaded connection between the pulling head 21 and the screw sleeve 5, the connecting sleeve 1 is fastened to the screw sleeve 5 to ensure the connection strength.

[0047] In some embodiments of the present invention, the fixing member 6 includes a fixing rod 61, the fixing rod 61 is inserted into the fixing hole, and a stopper 62 is provided at the lower end of the fixing rod 61, and the stopper 62 abuts against the lower end of the connecting member 4 to fix the fixing rod 61 in the fixing hole. Thus, the fixing rod 61 is stably arranged in the fixing hole of the second PTFE lining layer 41, and the second PTFE lining layer 41 is further prevented from being deformed after cooling, so that the structure of the PTFE lining tooling is more stable.

[0048] In some embodiments of the present invention, the upper end of the fixing rod 61 is threadedly connected with a fixing nut 63, and the fixing nut 63 abuts against the upper end of the connecting member 4. Through the cooperation of the fixing nut 63 and the limiting head 62, the fixing rod 61 can be more firmly set in the fixing hole.

[0049] In some embodiments of the present invention, the second lining polytetrafluoroethylene layer 41 includes an upper flange 42, a middle portion 43 and a lower flange 44, the upper flange 42 is connected to the upper end of the middle portion 43, the lower flange 44 is connected to the lower end of the middle portion 43, the middle portion 43 is arranged in the connecting member 4, the upper flange 42 abuts against the upper end of the connecting member 4, and the lower flange 44 abuts against the lower end of the connecting member 4.

[0050] Embodiment 2:

[0051] like Figure 4 As shown, the present invention provides a PTFE lining tool for a PTFE lining liquid level gauge, comprising: a connecting sleeve 1, the connecting sleeve 1 is provided with a mounting hole, the upper end of the connecting sleeve 1 is suitable for connecting with the PTFE lining liquid level gauge, a drawing piece 2 is provided in the mounting hole, and a first PTFE lining layer 3 is provided between the outer surface of the drawing piece 2 and the inner surface of the mounting hole; a connecting piece 4, the lower end of the connecting sleeve 1 is detachably connected to the connecting piece 4, the connecting piece 4 is provided with a second PTFE lining layer 41, and the second PTFE lining layer 41 has a fixing hole; a fixing piece 6, the fixing piece 6 is inserted in the fixing hole to avoid deformation of the second PTFE lining layer 41. Preferably, the first PTFE lining layer 3 is 1 mm, and the second PTFE lining layer 41 is 3 mm.

[0052] The PTFE lining tooling for the PTFE lining liquid level gauge of the present invention is connected to the PTFE lining liquid level gauge via a connecting sleeve 1, thereby making the connection between the PTFE lining tooling and the PTFE lining liquid level gauge more stable, thereby preventing leakage of the medium in the PTFE lining liquid level gauge.

[0053] At the same time, the connecting sleeve 1 is detachably connected to the connecting member 4, thereby making the connection between the components more convenient and easier to adjust, thereby achieving the effect of simple operation and saving work time.

[0054] In addition, the fixing member 6 is inserted into the fixing hole of the second PTFE lining layer 41 to prevent the second PTFE lining layer 41 from deforming after cooling, so as to make the structure of the PTFE lining tooling more stable and reduce the difficulty of making the PTFE lining layer to achieve the purpose of cost saving.

[0055] In some embodiments of the present invention, a screw sleeve 5 is further included, the lower end of the puller 2 is threadedly connected to the screw sleeve 5 so that the screw sleeve 5 abuts against the connecting sleeve 1, and the upper end of the connecting member 4 is threadedly connected to the screw sleeve 5. The components are connected by threads, so that the connection structure is simpler and more reliable.

[0056] In some embodiments of the present invention, a locking member 7 is further included, wherein the upper end of the locking member 7 is threadedly connected to the screw sleeve 5, and the lower end of the locking member 7 is threadedly connected to the connecting member 4, and a sealing member 71 is provided between the locking member 7, the screw sleeve 5 and the connecting member 4. The locking member 7 is connected to the screw sleeve 5 and the connecting member 4 respectively, thereby preventing the screw sleeve 5 from falling off the connecting member 4, so as to improve the stability of the tooling. At the same time, a sealing member 71 is provided between the locking member 7, the screw sleeve 5 and the connected member to ensure the sealing between the locking member 7, the screw sleeve 5 and the connected member. The sealing member 71 can be a sealing ring.

[0057] In some embodiments of the present invention, a transition piece 8 is further included, the lower end of the transition piece 8 is threadedly connected to the connecting sleeve 1, and the upper end of the transition piece 8 is suitable for threaded connection with the PTFE-lined liquid level gauge, so as to facilitate the connection between the connecting sleeve 1 and the PTFE-lined liquid level gauge, thereby simplifying the structure of the tooling.

[0058] In some embodiments of the present invention, the connecting sleeve 1 can also be welded on the PTFE-lined liquid level gauge to ensure the sealing of the connection and improve the structural strength.

[0059] Embodiment three:

[0060] The present invention provides a PTFE lining tool for a PTFE lining liquid level gauge, comprising: a connecting sleeve 1, the connecting sleeve 1 is provided with a mounting hole, the upper end of the connecting sleeve 1 is suitable for connecting with the PTFE lining liquid level gauge, a drawing piece 2 is provided in the mounting hole, and a first PTFE lining layer 3 is provided between the outer surface of the drawing piece 2 and the inner surface of the mounting hole; a connecting piece 4, the lower end of the connecting sleeve 1 is detachably connected to the connecting piece 4, a second PTFE lining layer 41 is provided in the connecting piece 4, and the second PTFE lining layer 41 has a fixing hole; a fixing piece 6, the fixing piece 6 is inserted in the fixing hole to avoid deformation of the second PTFE lining layer 41. Preferably, the first PTFE lining layer 3 is 1 mm, and the second PTFE lining layer 41 is 3 mm.

[0061] The PTFE lining tooling for the PTFE lining liquid level gauge of the present invention is connected to the PTFE lining liquid level gauge via a connecting sleeve 1, thereby making the connection between the PTFE lining tooling and the PTFE lining liquid level gauge more stable, thereby preventing leakage of the medium in the PTFE lining liquid level gauge.

[0062] At the same time, the connecting sleeve 1 is detachably connected to the connecting member 4, thereby making the connection between the components more convenient and easier to adjust, thereby achieving the effect of simple operation and saving work time.

[0063] In addition, the fixing member 6 is inserted into the fixing hole of the second PTFE lining layer 41 to prevent the second PTFE lining layer 41 from deforming after cooling, so as to make the structure of the PTFE lining tooling more stable and reduce the difficulty of making the PTFE lining layer to achieve the purpose of cost saving.

[0064] In some embodiments of the present invention, the connecting sleeve 1 is snap-connected to the connecting member 4. It can be understood that the snap-connection between the components makes the connection structure between the components simpler and more reliable.

[0065] In some embodiments of the present invention, the connecting sleeve 1 is provided with a plurality of buckles at intervals along the circumferential direction, and the connecting member 4 is provided with a plurality of slots at intervals along the circumferential direction. The plurality of buckles are correspondingly engaged in the plurality of slots, so that the connecting sleeve 1 is firmly connected to the connecting member 4, thereby making the structure of the tooling simpler.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0067] Although the 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 claims and their equivalents.

Claims

1. A PTFE-lined tooling for a PTFE-lined liquid level gauge, characterized in that: include: A connecting sleeve, wherein the connecting sleeve is provided with a mounting hole, the upper end of the connecting sleeve is suitable for connecting with the PTFE-lined liquid level gauge, a drawing piece is provided in the mounting hole, and a first PTFE-lined layer is provided between the outer surface of the drawing piece and the inner surface of the mounting hole; A connecting piece, the lower end of the connecting sleeve is detachably connected to the connecting piece, a second PTFE lining layer is provided in the connecting piece, and the second PTFE lining layer has a fixing hole; A fixing member, the fixing member is inserted into the fixing hole to prevent the second lining polytetrafluoroethylene layer from being deformed; It also includes a screw sleeve, the lower end of the puller is threadedly connected to the screw sleeve so that the screw sleeve abuts against the connecting sleeve, and the upper end of the connecting member is threadedly connected to the screw sleeve; The drawing piece comprises a drawing head and a drawing connection portion connected to the lower end of the drawing head, the drawing connection portion is threadedly connected to the threaded sleeve, and the drawing head is arranged in the mounting hole; The diameter of the pulling head gradually decreases from top to bottom, and the pulling head cooperates with the connecting sleeve so that the pulling member presses the connecting sleeve onto the screw sleeve; The fixing member comprises a fixing rod, the fixing rod is inserted into the fixing hole, a limiting head is arranged at the lower end of the fixing rod, and the limiting head abuts against the lower end of the connecting member to fix the fixing rod in the fixing hole.

2. The PTFE-lined tooling for PTFE-lined liquid level gauge according to claim 1, characterized in that: The upper end of the fixing rod is threadedly connected with a fixing nut, and the fixing nut abuts against the upper end of the connecting piece.

3. The PTFE-lined tooling for PTFE-lined liquid level gauge according to claim 1, characterized in that: The second PTFE lining layer includes an upper flange, a middle part and a lower flange, the upper flange is connected to the upper end of the middle part, the lower flange is connected to the lower end of the middle part, the middle part is arranged in the connecting piece, the upper flange abuts the upper end of the connecting piece, and the lower flange abuts the lower end of the connecting piece.

4. The PTFE-lined tooling for PTFE-lined liquid level gauge according to claim 1, characterized in that: It also includes an anti-loosening member, the upper end of which is threadedly connected to the screw sleeve, the lower end of which is threadedly connected to the connecting member, and a sealing member is provided between the anti-loosening member, the screw sleeve and the connecting member.

5. The PTFE-lined tooling for PTFE-lined liquid level gauge according to claim 1, characterized in that: It also includes an adapter, the lower end of which is threadedly connected to the connecting sleeve, and the upper end of which is suitable for being threadedly connected to the polytetrafluoroethylene-lined liquid level gauge.

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