Screw thread joint fastener
By designing a threaded joint fastener including support rods, side plates, abutment plates and fasteners, and improving the fastness of the connection through preloading force, the problems of wear of existing threaded joints resulting in unsolid connections and poor sealing effect are solved, and the sealing effect is significantly improved.
Patent Information
- Application Number
- CN202420726197.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-04-09
AI Technical Summary
The existing threaded joints are prone to wear during use, resulting in unsolid connections, creating gaps, poor sealing effect, and thus leading to compressed air leakage and insufficient pressure of the pneumatic valve.
A threaded joint fastener including a support rod, side plate, abutment plate and a fastener is designed. After the threaded joint is connected, it is placed in the fixed area formed by the tightening member and the abutment plate, and the pretension force of the bolt or iron rod is applied to the center by both ends of the threaded joint, thereby improving the fastness and sealing effect of the connection.
By increasing the preload force, the connection tightness between threaded joints is improved, the gap is prevented, the sealing effect is significantly improved, and the problems of compressed air leakage and insufficient pneumatic valve pressure are avoided.
Smart Images
Figure CN222773048U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of fasteners, and in particular to a threaded joint fastener. Background Art
[0002] The threaded joint is an important part of the compressed natural gas (CNG) tank truck that connects the pneumatic ball valve switch. Its function is to control the execution of opening the tank truck pneumatic ball valve. The threaded joint needs to be tightened and sealed during use, and there should be no gap between the joints.
[0003] At present, the material of threaded joints is high-strength resin. The threads are prone to wear during use. Thread wear will cause the connection between the threaded joints to be loose, and will also cause gaps between the threaded joints and poor sealing effects, which will lead to compressed air leakage, insufficient pressure in the pneumatic valve and inability to open normally, resulting in pipeline pressure buildup and hydraulic oil leakage. Utility Model Content
[0004] The present application provides a threaded joint fastener, aiming to improve the sealing effect of the threaded joint.
[0005] The present application provides a threaded joint fastener, comprising: a support rod, and two side plates and a fastening member arranged on the support rod;
[0006] Wherein, the two side panels are respectively arranged at two ends of the support rod, the two side panels are arranged on the same side of the support rod, and the two side panels are perpendicular to the support rod;
[0007] An abutment plate is provided at one end of the side plate away from the support rod, and the abutment plate extends toward a position between the two side plates;
[0008] The abutting member is arranged on the support rod in a direction perpendicular to the support rod, and the abutting member can be moved or fixed in a direction perpendicular to the support rod;
[0009] A fixing area is formed between the abutting member and the two abutting plates, and the fixing area is used to fix the threaded joint.
[0010] Optionally, the fastening member includes a bolt, the bolt passes through the support rod, and the bolt is threadedly connected to the support rod.
[0011] Optionally, a through hole is formed at one end of the bolt away from the abutment plate, and the through hole is arranged along a vertical direction.
[0012] The direction perpendicular to the length direction of the bolt is opened.
[0013] Optionally, one end of the two side panels is provided with a mounting hole, and both ends of the support rod are respectively penetrated by the mounting holes to be fixedly connected to the two side panels.
[0014] Optionally, a flange is provided at one end of the abutment plate away from the side plate, and the flange extends toward the position where the support rod is located.
[0015] Optionally, the edge shape of one end of the abutment plate away from the side plate is set to be a straight line or an arc.
[0016] Optionally, the material of the threaded joint fastener includes aluminum, steel or copper.
[0017] Optionally, the length dimension of the support rod is 130 mm, the length dimension of the side panel is 20 mm, the height dimension of the side panel is 120 mm, the width dimension of the side panel is 30 mm, and the length dimension of the abutment plate is 12 mm.
[0018] Beneficial effects:
[0019] The present application provides a threaded joint fastener, comprising a support rod and two side plates respectively arranged at both ends of the support rod, the two side plates are located on the same side of the support rod, and the two side plates are perpendicular to the support rod, an abutment plate is arranged at one end of the side plate away from the support rod, the abutment plate extends toward the position between the side plates, a fastening member is passed through the support rod in a direction perpendicular to the support rod, the fastening member can be moved or fixed in a direction perpendicular to the support rod, a fixing area is formed between the fastening member and the two abutment plates, and the fixing area is used to fix the threaded joint.
[0020] In the embodiment of the present application, after the threaded joint is connected, the threaded joint is placed in a fixed area formed by the abutment member and two abutment plates, the two abutment plates are in contact with one end of the threaded joint, and the abutment member moves along a direction perpendicular to the support rod and close to the threaded joint until the end of the abutment member close to the threaded joint contacts the end of the threaded joint away from the abutment plates, then the movement of the abutment member is stopped and the abutment member is fixed on the support rod. At this time, in addition to the rated pressure of the threaded joint itself, both ends of the threaded joint are also subjected to a pre-tightening force applied to the center position of the threaded joint by the abutment plates and the abutment member, so that the connection between the threaded joints is tighter, and the threaded joint is more firmly fixed in the fixed area formed by the abutment member and the two abutment plates, so as to prevent the generation of gaps between the threaded joints, thereby improving the sealing effect of the threaded joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0022] Figure 1 It is a structural schematic diagram of a threaded joint fastener proposed in one embodiment of the present application;
[0023] Figure 2 It is a structural schematic diagram of an upper side plate of a threaded joint fastener proposed in an embodiment of the present application;
[0024] Figure 3 It is a schematic diagram of the connection structure between a threaded joint fastener and a threaded joint proposed in one embodiment of the present application;
[0025] Figure 4 It is a schematic structural diagram of a threaded joint fastener proposed in one embodiment of the present application.
[0026] Description of reference numerals:
[0027] 1. Support rod; 2. Side plate; 21. Mounting hole; 22. Abutment plate; 23. Flange; 3. Fastening member; 31. Through hole; 4. Threaded joint. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0029] Embodiment 1
[0030] The present application embodiment discloses a threaded joint fastener, such as Figure 1 As shown, it includes a support rod 1 and two side plates 2 and a fastening member 3 arranged on the support rod 1.
[0031] To expand on this, Figure 2 As shown, one end of the two side panels 2 is provided with a mounting hole 21, and the two ends of the support rod 1 are respectively penetrated with the mounting holes 21 and fixedly connected with the two side panels 2. After the connection, the two side panels 2 and the support rod 1 are perpendicular, and the two side panels 2 are on the same side of the support rod 1. The distance between the two side panels 2 is greater than the maximum diameter of the threaded joint, so that the area formed by the two side panels 2 and the support rod 1 can accommodate the threaded joint.
[0032] Specifically, the support rod 1 and the two side panels 2 are connected by interference fit, so that the threaded joint fasteners are not easy to fall off between the support rod 1 and the side panels 2 during use, and the side panels 2 are not easy to be lost when stored, and can provide a greater pre-tightening force for the threaded joint.
[0033] Furthermore, an abutment plate 22 is provided at one end of the two side plates 2 away from the support rod 1, and the abutment plate 22 extends toward the position between the two side plates 2. The two abutment plates 22 are respectively in contact with one end of the threaded joint, and a fixed area is formed between the fastening member 3 and the two abutment plates 22. One end of the fastening member 3 is in contact with one end of the threaded joint away from the abutment plate 22, so that the threaded joint is fixed in the fixed area.
[0034] In the embodiments of the present application, Figure 3 As shown, the abutment plate 22 is perpendicular to the side plate 2, and there is a gap between the two abutment plates 22. The distance of the gap is smaller than the maximum diameter of the threaded joint 4, but larger than the diameter of the joint adjacent to the abutment plate 22 in the threaded joint 4. In this way, when the threaded joint 4 is placed in the fixed area between the two abutment plates 22 and the fastening member 3, the two abutment plates 22 can be respectively connected to the two ends of the joint with the largest diameter in the threaded joint 4.
[0035] Specifically, the joint with the largest diameter in the threaded joint is the connection between the threaded joints, and the joint with the largest diameter is the place where wear is most likely to occur, resulting in a loose connection between the threaded joints. By adjusting the interval between the abutment plates 22, the abutment plates 22 can be directly connected to the two ends of the joint with the largest diameter. When the threaded joint 4 is fixed in the fixed area formed by the abutment plates 22 and the abutment members 3, the joint with the largest diameter can directly receive the pre-tightening force from the abutment plates 22 to the center of the threaded joint 4, that is, the connection of the threaded joint can directly receive the pre-tightening force of the abutment plates 22, and the abutment members 3 also apply a pre-tightening force to the center of the threaded joint 4 on the end of the threaded joint 4 away from the abutment plates 22, which can make the connection between the threaded joints more secure and the threaded joints more airtight.
[0036] Furthermore, the edge shape of the two abutment plates 22 at one end away from the side plate 2 can be adjusted according to the shape of the part of the joint that contacts the threaded joint, and the edge shape can be set to a straight line or an arc. By adjusting the shape of the edge, the contact area between the abutment plates and the threaded joint is increased, thereby increasing the preload force applied by the abutment plates to the threaded joint.
[0037] In the embodiments of the present application, Figure 4As shown, the two abutment plates 22 are provided with flanges 23 at one end away from the side plate 2, and the two flanges 23 extend in the direction close to the support rod 1. The flanges 23 and the abutment plates 22 are perpendicular to each other. When there is a gap at one end where the threaded joint is connected to the abutment plate, the size of the flange is adjusted so that the flange can be stuck in the gap, so that the connection between the abutment plate 22 and the threaded joint is more stable when the threaded joint fastener is in use, so that the abutment plate 22 can apply a greater pre-tightening force to the threaded joint and improve the airtightness of the threaded joint.
[0038] In the embodiments of the present application, Figure 1 As shown, the clamping member 3 is inserted into the support rod 1 in a direction perpendicular to the support rod 1, and can move toward the threaded joint in a direction perpendicular to the support rod 1 until one end of the clamping member 3 contacts the end of the threaded joint away from the abutment plate 22, and the clamping member 3 stops moving and is fixed on the support rod 1, and the threaded joint is clamped in a fixed area formed by the clamping member 3 and the two abutment plates 22.
[0039] Specifically, the fastening member 3 can be a bolt, and a screw hole is provided on the support rod 1 near the center of the support rod 1. The bolt passes through the screw hole and is threadedly connected to the support rod 1. The bolt is turned by hand to rotate in the screw hole in a direction perpendicular to the support rod 1 and moves toward the direction close to the threaded joint. When the end of the bolt close to the threaded joint contacts the end of the threaded joint away from the abutment plate 22, the bolt is stopped from being turned and is fixed on the support rod 1. At this time, the threaded joint is clamped in the fixed area formed by the bolt and the two abutment plates 22, and the two ends of the threaded joint receive the pre-tightening force from the bolt and the two abutment plates 22 toward the center of the threaded joint, so that the threaded joint has a higher airtightness.
[0040] By using bolts as the fastening members in the embodiments of the present application, the bolts can be directly turned by hand to move them, which is more convenient and quicker in actual use.
[0041] Furthermore, a through hole 31 is provided at the end of the bolt away from the abutment plate. The through hole 31 is provided in a direction perpendicular to the length of the bolt. An external iron rod passes through the through hole 31 and is connected to the bolt. By rotating the iron rod, the bolt is driven to move in the screw hole toward the direction close to the threaded joint. Using the external iron rod to tighten the bolt is more labor-saving than tightening the bolt manually. Moreover, when the bolt cannot be tightened by hand, the iron rod can be rotated to drive the bolt to continue to approach the threaded joint, so that the contact between the bolt and the threaded joint is closer. Furthermore, the threaded joint will be clamped more firmly in the fixed area formed by the two abutment plates and the bolt, the connection between the threaded joints will be tighter, and the airtightness of the threaded joint will be higher.
[0042] In summary, by arranging the threaded joint fastener provided by the embodiment of the present application on the threaded joint, after the threaded joint is connected, the two ends of the threaded joint respectively receive the pre-tightening force applied to the center position of the threaded joint from the abutment plate 22 and the fastening member 1, so that the connection between the threaded joints is tighter and there is no gap between the threaded joints, thereby improving the sealing effect of the threaded joint and preventing compressed air leakage due to poor sealing effect of the threaded joint.
[0043] In the embodiment of the present application, because the threaded joint fastener is to be connected to the threaded joint, and the threaded joint is an important component for connecting the CNG hydraulic tank truck to the pneumatic ball valve switch, for safety reasons, the threaded joint fastener needs to be made of a metal material that is not easy to generate sparks when friction and collision occur during actual use. One of aluminum, steel, and copper can be selected. The threaded joint fasteners made of these materials will not generate sparks due to friction and collision during use, thereby preventing safety accidents caused by material problems of the threaded joint fasteners.
[0044] In the embodiment of the present application, the size of the threaded joint fastener can be set according to the current threaded joint shape and size as follows: the length of the support rod is 130mm, the length of the side plate is 20mm, the height of the side plate is 120mm, the width of the side plate is 30mm, and the length of the two abutment plates is 12mm. The size of the threaded joint fastener provided in this embodiment is compatible with the current threaded joint. In the subsequent use process, the size of the threaded joint fastener can be adjusted according to the shape and size of the threaded joint, so that the threaded joint fastener can adapt to the threaded joint. In this way, the fastener can exert a better pre-tightening force on the threaded joint, making the connection between the threaded joints tighter and improving the airtightness of the threaded joint.
[0045] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0046] It should also be noted that, in this article, the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply 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 application. In addition, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations, nor can they be understood as indicating or implying relative importance. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. Without more restrictions, an element defined by the phrase "comprising a ..." does not exclude the existence of other identical elements in the process, method, article or terminal device comprising the element.
[0047] The technical solution provided by the present application is described in detail above. The principle and implementation method of the present application are described in this article using specific examples. The description of the above embodiments is only used to help understand the present application, and the content of this specification should not be understood as limiting the present application. At the same time, for those of ordinary skill in the art, according to the present application, there will be different forms of changes in the specific implementation methods and application scopes. It is not necessary and impossible to list all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the scope of protection of the present application.
Claims
1. A threaded joint fastener, characterized in that: It comprises a support rod, two side plates and a fastening member arranged on the support rod; Wherein, the two side panels are respectively arranged at two ends of the support rod, the two side panels are arranged on the same side of the support rod, and the two side panels are perpendicular to the support rod; An abutment plate is provided at one end of the side plate away from the support rod, and the abutment plate extends toward a position between the two side plates; The abutting member is arranged on the support rod in a direction perpendicular to the support rod, and the abutting member can be moved or fixed in a direction perpendicular to the support rod; A fixing area is formed between the abutting member and the two abutting plates, and the fixing area is used to fix the threaded joint.
2. The threaded joint fastener according to claim 1, characterized in that: The fastening member includes a bolt, the bolt is passed through the support rod, and the bolt is threadedly connected to the support rod.
3. The threaded joint fastener according to claim 2, characterized in that: A through hole is formed at one end of the bolt away from the abutting plate, and the through hole is formed in a direction perpendicular to the length direction of the bolt.
4. The threaded joint fastener according to claim 1, characterized in that: One end of the two side plates is provided with a mounting hole, and the two ends of the support rod are respectively penetrated by the mounting holes and fixedly connected to the two side plates.
5. The threaded joint fastener according to claim 1, characterized in that: A flange is provided at one end of the abutment plate away from the side plate, and the flange extends toward the position where the support rod is located.
6. The threaded joint fastener according to claim 1, characterized in that: The edge shape of one end of the abutting plate away from the side plate is set to be a straight line or an arc shape.
7. The threaded joint fastener according to claim 1, characterized in that: The material of the threaded joint fastener includes aluminum, steel or copper.
8. The threaded joint fastener according to claim 1, characterized in that: The length dimension of the support rod is 130 mm, the length dimension of the side plate is 20 mm, the height dimension of the side plate is 120 mm, the width dimension of the side plate is 30 mm, and the length dimension of the abutment plate is 12 mm.