A force transmission joint that avoids thread stripping

Abstract

This utility model discloses a force transmission joint that prevents thread slippage, including an upper joint, a lower joint fitted to the inner side of the lower end of the upper joint, and an upper flange and a lower flange fixedly connected to the outer ends of the upper and lower joints respectively; it also includes: an adjustable connection structure between the upper and lower flanges, and an anti-slip limiting structure for the adjustable connection structure provided behind the upper joint; connecting ropes corresponding to holes are attached and fixed to the outside of both the upper and lower flanges, and a sealing and leak-proof structure is provided between the upper joint, the lower joint, the upper flange, and the lower flange; the adjustable connection structure includes a limiting rod, a fixed sleeve, an adjusting rod, and a movable sleeve. This force transmission joint that prevents thread slippage allows for precise adjustment of the overall length of the force transmission joint to meet the connection requirements of workpieces with different spacings, facilitates anti-slip of the movable sleeve and subsequent installation bolts to prevent thread slippage of the force transmission joint, and ensures the sealing performance of the force transmission joint.

Description

Technical Field

[0001] This utility model relates to the field of force transmission joint technology, specifically a force transmission joint that avoids thread slippage. Background Technology

[0002] A force transmission joint is a key component used to connect equipment such as pumps and valves to pipelines. It connects the equipment and pipelines into a whole through bolts, has a certain displacement, can be adjusted in size during installation, and can transmit axial thrust to the entire pipeline system, thereby protecting the equipment and improving operating efficiency.

[0003] For example, Chinese utility model patent CN212616916U discloses a force transmission compensation joint, including a joint body that is sleeved with a short pipe flange. A pressure cap is sleeved on the smaller diameter end of the joint body. A long stud passes through the through holes on the joint body, the pressure cap, and the short pipe flange in sequence. A nut is screwed onto the long stud, and a stainless steel ring washer is provided on one side of the nut. The compensation amount of the force transmission joint is the adjustment amount during installation and disassembly. After tightening all the nuts, it is a rigid connection that can transmit axial force, thereby protecting equipment such as valves and pumps. The addition of a stainless steel ring washer on one side of the nut provides a small-range vibration damping effect.

[0004] However, existing force transmission joints still have some problems during use. For example, it is generally not convenient to accurately adjust the overall length of the force transmission joint, making it difficult to meet the connection requirements of workpieces with different spacings. There is also the possibility of thread slippage during use, which makes it difficult to guarantee the sealing performance of the force transmission joint. Therefore, we propose a force transmission joint that avoids thread slippage in order to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a force transmission joint that avoids thread slippage, so as to solve the problems mentioned in the background art. The existing force transmission joints still have some problems in use, such as the inconvenience to accurately adjust the overall length of the force transmission joint, the difficulty in meeting the connection requirements of workpieces with different spacing, the possibility of thread slippage in use, and the difficulty in ensuring the sealing performance of the force transmission joint.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a force transmission joint that avoids thread slippage, comprising an upper joint, a lower joint fitted to the inner side of the lower end of the upper joint, and an upper flange and a lower flange respectively fixedly connected to the outer ends of the upper joint and the lower joint;

[0007] Also includes:

[0008] An adjustable connection structure is provided between the upper flange and the lower flange, and an anti-slip limiting structure for the adjustable connection structure is provided behind the upper joint.

[0009] Both the upper and lower flanges are fixed with connecting ropes corresponding to the holes, and a sealing and leak-proof structure is provided between the upper connector, the lower connector, the upper flange, and the lower flange.

[0010] Preferably, the adjustable connection structure includes a limiting rod, a fixed sleeve, an adjusting rod, and a movable sleeve. The limiting rod is fixedly connected to the front end and the lower sides of the left and right ends of the upper flange. The lower outer side of the limiting rod is engaged with a fixed sleeve that cannot be detached, and the fixed sleeve is fixed to the lower flange.

[0011] Preferably, the adjusting rod is symmetrically fixed to the inner rear end of the upper flange and the lower flange, and the inner end of the adjusting rod is threadedly connected to a movable sleeve on the outer side.

[0012] Preferably, the anti-slip limiting structure includes a connecting strip and an anti-slip pad, and the connecting strip is fitted to the upper and lower sides of the front end of the movable sleeve. After the connecting strip is symmetrically fixed to the upper connector, the inner sides of the left and right ends of the connecting strip are glued and fixed with the anti-slip pad fitted to the movable sleeve. The right front side of the anti-slip pad is provided with a scale opened in the upper connector.

[0013] Preferably, a gasket is attached to the outer end of the connecting rope, and the inner diameter of the gasket is the same as the inner diameter of the holes in the upper and lower flanges.

[0014] Preferably, the sealing and leak-proof structure includes a first sealing gasket, a second sealing gasket, a third sealing gasket, and a fourth sealing gasket. The first and second sealing gaskets are nested and fitted to the inner sides of the outer ends of the upper and lower flanges, respectively. The inner side of the lower end of the upper connector and the inner side of the upper end of the lower connector are nested and fitted to the third and fourth sealing gaskets, respectively. The third and fourth sealing gaskets are respectively fitted and connected to the outside of the lower connector and the inside of the upper connector.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the force transmission joint that avoids slippage is convenient to accurately adjust the overall length of the force transmission joint to meet the connection requirements of workpieces with different spacing, and it is convenient to prevent slippage of the movable sleeve and subsequent installation bolts, so as to avoid slippage of the force transmission joint and ensure the sealing performance of the force transmission joint.

[0016] 1. The device is equipped with an upper connector, a lower connector, an upper flange, and a lower flange. The lower connector is nested and fitted inside the lower end of the upper connector. The upper flange and lower flange are fixedly connected to the outer sides of the upper connector and the lower connector, respectively. The limiting rods fixed to the front end and the lower left and right ends of the upper flange are engaged and non-detachably connected to the fixing sleeves fixed to the front end and the upper left and right ends of the lower flange. The rear inner sides of the upper and lower flanges are fixedly connected with symmetrical adjusting rods. The inner end of the adjusting rod is threaded to the outer side of the movable sleeve. The upper rear inner side of the upper connector has a scale in front of the movable sleeve. Therefore, it is convenient to accurately adjust the overall length of the force transmission connector to meet the connection requirements of workpieces with different spacing.

[0017] 2. It is equipped with a movable sleeve, connecting strip, anti-slip pad and gasket. The front end of the movable sleeve is fitted with connecting strips that are fixed to the upper connector. The inner sides of the left and right ends of the connecting strip are fixed with anti-slip pads that fit with the movable sleeve. The upper flange and the lower flange are connected with gaskets through the connecting rope. The gaskets are set to correspond to the holes in the upper flange and the lower flange. Therefore, it is convenient to prevent the movable sleeve and the subsequent installation bolts from slipping, so as to avoid stripping of the force transmission joint.

[0018] 3. The joint is equipped with a first sealing gasket, a second sealing gasket, a third sealing gasket, and a fourth sealing gasket. The first and second sealing gaskets are nested and fitted inside the outer ends of the upper and lower flanges, respectively. The third and fourth sealing gaskets are nested and fitted inside the lower end of the upper joint and the upper end of the lower joint, respectively. The third and fourth sealing gaskets are respectively attached to the outside of the lower joint and the inside of the upper joint, thus ensuring the sealing performance of the force transmission joint. Attached Figure Description

[0019] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below;

[0021] Figure 3 This is a front view structural diagram of the present invention;

[0022] Figure 4 This is a side view sectional structural diagram of the present invention;

[0023] Figure 5 This is a frontal cross-sectional three-dimensional structural diagram of the connection between the lower connector and the lower flange of this utility model.

[0024] In the diagram: 1. Upper connector; 2. Lower connector; 3. Upper flange; 4. Lower flange; 5. Limiting rod; 6. Fixing sleeve; 7. Adjusting rod; 8. Movable sleeve; 9. Connecting strip; 10. Anti-slip pad; 11. Scale; 12. Connecting rope; 13. Gasket; 14. First sealing gasket; 15. Second sealing gasket; 16. Third sealing gasket; 17. Fourth sealing gasket. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 This utility model provides a technical solution: a force transmission joint to prevent slippage, comprising an upper joint 1, a lower joint 2, an upper flange 3, a lower flange 4, a limiting rod 5, a fixing sleeve 6, an adjusting rod 7, a movable sleeve 8, a connecting strip 9, an anti-slip pad 10, a scale 11, a connecting rope 12, a gasket 13, a first sealing gasket 14, a second sealing gasket 15, a third sealing gasket 16, and a fourth sealing gasket 17. The lower joint 2 is fitted to the inner side of the lower end of the upper joint 1, and the upper flange 3 and lower flange 4 are respectively fixedly connected to the outer ends of the upper joint 1 and the lower joint 2. An adjustable connection structure is provided between the upper flange 3 and the lower flange 4, and an anti-slip limiting structure for the adjustable connection structure is provided behind the upper joint 1. The adjustable connection structure includes... The device includes a limiting rod 5, a fixed sleeve 6, an adjusting rod 7, and a movable sleeve 8. The limiting rod 5 is fixedly connected to the front end and the lower sides of the left and right ends of the upper flange 3. Connecting ropes 12 corresponding to the holes are attached and fixed to the outside of the upper flange 3 and the lower flange 4. A sealing and leak-proof structure is provided between the upper connector 1, the lower connector 2, the upper flange 3, and the lower flange 4. The anti-slip limiting structure includes a connecting strip 9 and an anti-slip pad 10. The connecting strip 9 is attached to the upper and lower sides of the front end of the movable sleeve 8. The sealing and leak-proof structure includes a first sealing gasket 14, a second sealing gasket 15, a third sealing gasket 16, and a fourth sealing gasket 17. The first sealing gasket 14 and the second sealing gasket 15 are respectively nested and attached to the inner sides of the outer ends of the upper flange 3 and the lower flange 4.

[0027] The lower outer side of the limiting rod 5 is non-removably connected to the fixing sleeve 6, and the fixing sleeve 6 is fixed to the lower flange 4. The adjusting rod 7 is symmetrically fixed to the inner rear end of the upper flange 3 and the lower flange 4, and the inner outer side of the adjusting rod 7 is threadedly connected to the movable sleeve 8. The connecting strip 9 is symmetrically fixed to the upper connector 1, and the inner sides of the left and right ends of the connecting strip 9 are pasted and fixed with anti-slip pads 10 that fit with the movable sleeve 8. The right front side of the anti-slip pad 10 is provided with a scale 11 opened in the upper connector 1. The outer end of the connecting rope 12 is pasted and fixed with a gasket 13, and the inner diameter of the gasket 13 is the same as the inner diameter of the hole in the upper flange 3 and the lower flange 4. The lower inner side of the upper connector 1 and the upper inner side of the lower connector 2 are respectively nested and pasted with a third sealing gasket 16 and a fourth sealing gasket 17, and the third sealing gasket 16 and the fourth sealing gasket 17 are respectively pasted and connected to the outside of the lower connector 2 and the inside of the upper connector 1.

[0028] To address the problems in existing technologies, such as the inconvenience of precisely adjusting the overall length of the force transmission joint, the difficulty in meeting the connection requirements of workpieces with different spacings, the possibility of thread slippage during use, and the inability to guarantee the sealing performance of the force transmission joint, this embodiment adopts the following technical solution, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4The operator can first place the force transmission joint next to the workpiece to be connected, then measure the spacing between the workpieces, and then rotate the movable sleeve 8 set behind the upper joint 1. The movable sleeve 8 has symmetrical adjusting rods 7 threadedly connected to the inner sides of its upper and lower ends. The adjusting rods 7 are fixedly connected to the inner rear ends of the upper flange 3 and lower flange 4, and the upper flange 3 and lower flange 4 are respectively fixedly connected to the outside of the upper joint 1 and lower joint 2. Limiting rods 5 are fixed to the front end and lower sides of the left and right ends of the upper flange 3, and fixing sleeves 6 are fixed to the front end and upper sides of the left and right ends of the lower flange 4. The rod 5 and the fixed sleeve 6 are locked and non-detachable. The right front side of the movable sleeve 8 is provided with a scale 11 located on the inner side of the upper rear end of the upper connector 1. Therefore, based on the observation of the scale 11, the movable sleeve 8 can be rotated so that the adjusting rod 7 drives the upper flange 3 and the lower flange 4 to move in opposite directions under the locking and limiting of the locking rod 5 and the fixed sleeve 6, until the outer spacing of the upper flange 3 and the lower flange 4 is the same as the spacing of the workpiece to be connected. This makes it easy to accurately adjust the overall length of the force transmission joint to meet the connection requirements of workpieces with different spacing.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 Next, the first sealing gasket 14 and the second sealing gasket 15 can be nested and attached to the inner side of the outer end of the upper flange 3 and the lower flange 4 respectively. Then, the force transmission joint can be attached and placed inside the workpiece to be connected. Finally, the connecting rope 12 connected to the upper flange 3 and the lower flange 4 can be pulled outward, and the gasket 13 connected to the outside of the connecting rope 12 can be attached to the upper flange 3 or the workpiece, so that the hole in the gasket 13 is aligned with the hole opened in the upper flange 3 or the workpiece, so that the force transmission joint can be fixedly connected to the workpiece by bolts. In addition, the setting of the gasket 13 can prevent the bolt from slipping. The connecting strip 9, which is fixedly connected to the upper joint 1, is attached to the upper and lower sides of the front end of the movable sleeve 8. The inner side of the left and right ends of the connecting strip 9 is attached and fixed to the movable sleeve 8. Therefore, the movable sleeve 8 can be limited and prevented from slipping under the setting of the connecting strip 9 and the anti-slip pad 10, thus preventing the force transmission joint from slipping.

[0030] like Figure 1 , Figure 2 , Figure 4 and Figure 5During the use of this force transmission joint, the first sealing gasket 14 and the second sealing gasket 15 are nested and fitted on the inner sides of the outer ends of the upper flange 3 and the lower flange 4, respectively, to facilitate the sealing of the connection between the force transmission joint and the workpiece. In addition, the third sealing gasket 16 is nested and fitted on the inner side of the lower end of the upper joint 1 and fitted on the outside of the lower joint 2, and the fourth sealing gasket 17 is nested and fitted on the inner side of the upper end of the lower joint 2 and fitted on the inside of the upper joint 1, so as to facilitate the sealing of the connection between the lower joint 2 and the upper joint 1 through the setting of the third sealing gasket 16 and the fourth sealing gasket 17, thereby ensuring the sealing performance of the force transmission joint. All the electrical components mentioned above are existing technologies and will not be described in detail here.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A force transmission joint to avoid thread slippage, comprising an upper joint (1), a lower joint (2) fitted to the inner side of the lower end of the upper joint (1), and an upper flange (3) and a lower flange (4) fixedly connected to the outer ends of the upper joint (1) and the lower joint (2), respectively; characterized in that Also includes: An adjustable connection structure is provided between the upper flange (3) and the lower flange (4), and an anti-slip limiting structure for the adjustable connection structure is provided after the upper connector (1); Both the upper flange (3) and the lower flange (4) are attached with connecting ropes (12) corresponding to the holes, and a sealing and leak-proof structure is provided between the upper connector (1), the lower connector (2), the upper flange (3), and the lower flange (4).

2. The force transfer coupling of claim 1, wherein: The adjustable connection structure includes a limiting rod (5), a fixed sleeve (6), an adjusting rod (7), and a movable sleeve (8). The limiting rod (5) is fixedly connected to the front end and the lower left and right sides of the upper flange (3). The lower outer side of the limiting rod (5) is locked with a fixed sleeve (6) that cannot be detached, and the fixed sleeve (6) is fixed to the lower flange (4).

3. The slip joint of claim 2, wherein: The adjusting rod (7) is symmetrically fixed to the inner rear end of the upper flange (3) and the lower flange (4), and the inner end of the adjusting rod (7) is threaded with a movable sleeve (8).

4. The slip joint of claim 1, wherein: The anti-slip limiting structure includes a connecting strip (9) and an anti-slip pad (10). The connecting strip (9) is attached to the upper and lower sides of the front end of the movable sleeve (8). The connecting strip (9) is symmetrically fixed to the upper connector (1). The inner sides of the left and right ends of the connecting strip (9) are attached to the anti-slip pad (10) which is attached to the movable sleeve (8). The right front side of the anti-slip pad (10) is provided with a scale (11) opened in the upper connector (1).

5. The slip joint of claim 1, wherein: The outer end of the connecting rope (12) is attached to a gasket (13), and the inner diameter of the gasket (13) is the same as the inner diameter of the holes in the upper flange (3) and the lower flange (4).

6. A force transmission joint for preventing thread slippage according to claim 1, characterized in that: The sealing and leak-proof structure includes a first sealing gasket (14), a second sealing gasket (15), a third sealing gasket (16), and a fourth sealing gasket (17). The first sealing gasket (14) and the second sealing gasket (15) are respectively nested and attached to the inner side of the outer end of the upper flange (3) and the lower flange (4). The inner side of the lower end of the upper connector (1) and the inner side of the upper end of the lower connector (2) are respectively nested and attached to the third sealing gasket (16) and the fourth sealing gasket (17). The third sealing gasket (16) and the fourth sealing gasket (17) are respectively attached and connected to the outside of the lower connector (2) and the inside of the upper connector (1).

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