Novel connecting joint

Abstract

The utility model discloses a novel connecting joint which comprises a valve core, a valve rod, a valve rod and a valve rod. A first screwing driven part is arranged on the outer wall of the valve core or at one end far away from the connecting stud; a first liquid flowing channel is formed in the valve element; the adjusting connecting piece is rotationally connected with the valve element and is provided with a locking damper; the adjusting connecting piece is provided with a second screwing driven part, and when screwing force on the second screwing driven part is removed, the adjusting connecting piece and the valve element are relatively locked and fixed; the adjusting connecting piece is provided with a second liquid flowing channel which is correspondingly connected with a liquid inlet of the first liquid flowing channel; a liquid inlet of the second liquid flowing channel is used for being connected with an external liquid supply device; the appearance of the valve element is of a turnover body structure, and the outer wall of the connecting stud is sleeved with a sealing ring. By utilizing the novel connecting joint, the external liquid supply device is adjusted to a proper position, so that the external liquid supply device does not interfere with a corresponding passing device, and the use convenience of a user is improved.

Description

Technical Field

[0001] This application relates to the field of liquid transport technology, specifically a novel connecting joint applied to mechanical oil lubrication devices. Background Technology

[0002] In the prior art, such as the dustproof linear guide slider disclosed in patent application CN201320634549.7 and the connectable slider disclosed in patent application CN202122436249.5, both use an oil nozzle (also known as an oil inlet) to connect one end to the guide slider and the other end directly to the oil supply tank, or indirectly to the oil supply tank through a pipe and the oil outlet joint of the oil supply tank, so that the oil can flow through the internal channel.

[0003] This traditional nozzle, whether straight or bent, typically has an external threaded post that is first fastened to the threaded hole on the guide rail slider, and then the other end is directly connected to the oil supply tank, or indirectly connected to the oil supply tank's outlet connector via a pipe.

[0004] However, this fit depends on the depth of the threaded hole on the guide rail slider, the length of the external threaded post on the nozzle, and the thickness of the gasket or sealing ring between the nozzle and the guide rail slider. After the nozzle and the guide rail slider are fastened, if the oil supply tank is directly connected and fastened to the other end of the nozzle, the position of the oil supply tank relative to the guide rail slider will interfere with the device passing along the length of the guide rail.

[0005] Alternatively, the oil supply tank can be connected and secured to the other end of the nozzle via a pipe. The connection between the pipe and the nozzle may cause interference between the direction of the nozzle connector and the device passing along the length of the guide rail, thus creating a mechanical risk. Utility Model Content

[0006] This utility model addresses the above-mentioned problems by proposing a novel connecting joint, aiming to solve the technical issues in the background art.

[0007] To achieve the above objectives, this utility model provides a novel connecting connector, comprising:

[0008] The valve core has a connecting stud with external threads at one end; a first screwing driven part is provided on the outer wall of the valve core or at the end away from the connecting stud; and a first fluid passage is provided inside the valve core.

[0009] An adjusting connector is rotatably connected to the valve core and is provided with locking damping; the adjusting connector is provided with a second turning driven part, and when the turning force on the second turning driven part is released, the adjusting connector and the valve core are locked and fixed respectively; the adjusting connector is provided with a second liquid flow channel corresponding to the liquid inlet of the first liquid flow channel; the liquid inlet of the second liquid flow channel is used to connect to an external liquid supply device.

[0010] Furthermore, the adjusting connector also includes a double-cone ferrule and a tube liner. The adjusting connector has a connecting hole, and the double-cone ferrule is disposed between the valve core and the adjusting connector. The tube liner includes a suona bowl and a tube connected to the suona bowl. The suona bowl is connected to the first liquid flow channel. The tube extends into the connecting hole. The outer wall of the tube and the inner wall of the connecting hole form an annular connecting groove. The inner hole of the tube and the opening of the suona bowl constitute the second liquid flow channel.

[0011] Furthermore, the valve core is provided with a mounting hole that connects and communicates with the first fluid passage, the wall of the mounting hole is provided with a first internal thread, the outer wall of the adjusting connector is provided with an external thread that matches the first internal thread, and the adjusting connector and the valve core are rotatably connected through the external thread and the first internal thread.

[0012] Furthermore, the mounting hole is adjacent to the inlet of the first liquid flow channel and is provided with a first stepped groove with a diameter smaller than the diameter of the first internal thread; the edge of the suona bowl abuts against the annular wall of the first stepped groove and / or the end face of the suona bowl abuts against the bottom wall of the first stepped groove.

[0013] Furthermore, the valve core has a circumferential structure, and a sealing ring is fitted onto the outer wall of the connecting stud.

[0014] Furthermore, an annular stepped portion with a diameter greater than or equal to the outer diameter of the connecting stud and smaller than the outer diameter of the first screwing driven portion is provided between the first screwing driven portion and the connecting stud, and the sealing ring is sleeved and connected to the annular stepped portion.

[0015] Furthermore, it includes an adapter and a sealing gasket; the adapter includes a first rotating connection hole and a second rotating connection hole that are interconnected; an angle is provided between the first rotating connection hole and the second rotating connection hole;

[0016] The valve core is cylindrical at the end furthest from the connecting stud, and the first screwing follower is located on the end face of the cylinder. One end of the first rotating connection hole has a receiving groove with an outer diameter larger than the first rotating connection hole, and the cylinder is located within the receiving groove. A stepped shaft passing through the first rotating connection hole is provided between the cylinder and the connecting stud. The stepped shaft includes a support section that is rotatably connected to the first rotating connection hole through a transition fit, and a functional section located between the support section and the cylinder. The outer diameter of the functional section is smaller than the diameter of the first rotating connection hole to form an infusion space.

[0017] The first fluid passage includes at least a straight section through which a connecting stud and a stepped shaft pass, and a side outlet section through which the functional section passes and connects the straight section and the fluid infusion space;

[0018] The adjusting connector is rotatably connected to the second rotating connection hole to achieve an indirect rotatable connection with the valve core; the second liquid passage is connected to the infusion space through the second rotating connection hole to achieve a corresponding connection between the outlet of the second liquid passage and the inlet of the first liquid passage.

[0019] The sealing gasket is disposed in the receiving groove, located between the bottom wall of the receiving groove and the end face of the cylinder, and the stepped shaft passes through the sealing gasket.

[0020] Furthermore, it includes an adapter and a sealing gasket; the adapter includes a first rotating connection hole and a second rotating connection hole that are interconnected; an angle is provided between the first rotating connection hole and the second rotating connection hole;

[0021] The first screwing driven part is located outside the port of the first rotating connection hole; a stepped shaft passing through the first rotating connection hole is provided between the first screwing driven part and the connecting stud; the stepped shaft includes a support section that is rotatably connected to the first rotating connection hole through a transition fit, and a functional section located between the support section and the first screwing driven part; the outer diameter of the functional section is smaller than the diameter of the first rotating connection hole to form an infusion space;

[0022] The first fluid passage includes at least a straight section through which a connecting stud and a stepped shaft pass, and a side outlet section through which the functional section passes and connects the straight section and the fluid infusion space;

[0023] The adjusting connector is rotatably connected to the second rotating connection hole to achieve an indirect rotatable connection with the valve core; the second liquid passage is connected to the infusion space through the second rotating connection hole to achieve a corresponding connection between the outlet of the second liquid passage and the inlet of the first liquid passage.

[0024] The sealing gasket is fitted onto the stepped shaft and is located between the first rotating connection hole port and the first screwing driven part.

[0025] Furthermore, the adjusting connector also includes a double-cone ferrule and a tube liner. The adjusting connector has a connecting hole, and the double-cone ferrule is disposed between the adapter and the adjusting connector. The tube liner includes a suona bowl and a tube portion connected to the suona bowl. The suona bowl is aligned with the infusion space. The tube portion extends into the connecting hole. The outer wall of the tube portion and the inner wall of the connecting hole form an annular connecting groove. The inner hole of the tube portion and the opening of the suona bowl constitute the second fluid passage.

[0026] Furthermore, the second rotating connection hole wall is provided with a second internal thread, and the outer wall of the adjusting connector is provided with an external thread that matches the second internal thread;

[0027] The second rotating connection hole is adjacent to the infusion space and has a second stepped groove with a diameter smaller than the diameter of the second internal thread; the edge of the suona bowl abuts against the annular wall of the second stepped groove and / or the end face of the suona bowl abuts against the bottom wall of the second stepped groove.

[0028] Furthermore, at the end of the first rotating connection hole away from the receiving groove, the opening is provided with an abutting end face, and the abutting end face is provided with an annular groove for accommodating and placing the sealing ring.

[0029] Compared with existing technologies, this utility model provides a novel connecting joint that, by adding an adjusting connector, allows the valve core and guide rail slider to be threaded together and screwed in for final fixation. After relative fixation, the adjusting connector can be rotated relative to the valve core for adjustment. Furthermore, when the screwing force on the second screwing driven part is released, the adjusting connector and the valve core are locked together by a damping locking effect. The inlet of the second fluid passage is used to connect to an external fluid supply device. Oil from the oil tank or reservoir passes through the inlet of the second fluid passage, the second fluid passage, and the first fluid passage, ultimately reaching the corresponding oil-requiring part of the guide rail slider. The oil tank or reservoir can be adjusted to a suitable position by rotating relative to the valve core and guide rail slider using the adjusting connector, preventing interference with devices passing along the length of the guide rail and increasing user convenience. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a novel connector according to one embodiment of this application.

[0031] Figure 2 This is a cross-sectional schematic diagram of the valve core in one embodiment of a novel connector of this application.

[0032] Figure 3This is a cross-sectional schematic diagram of the valve core of a novel connector according to Embodiment 1 of this application.

[0033] Figure 4 This is a schematic diagram of a second embodiment of a novel connector according to this application.

[0034] Figure 5 for Figure 4 Schematic diagram of the intermediate connector in cross section.

[0035] Figure 6 This is a schematic diagram of the valve core structure of a novel connector according to Embodiment 2 of this application.

[0036] Figure 7 This is a cross-sectional schematic diagram of the valve core structure of a novel connector according to Embodiment 2 of this application.

[0037] Figure 8 This is a schematic diagram of the adjusting connector structure of a novel connector according to this application.

[0038] Figure 9 This is a cross-sectional schematic diagram of the adjusting connector structure of a novel connecting joint according to this application.

[0039] Figure 10 This is a schematic diagram of a novel connecting joint with a double-cone ferrule and tube liner structure according to this application.

[0040] Figure 11 This is a cross-sectional schematic diagram of the adapter structure of a novel connector according to Embodiment 2 of this application.

[0041] Figure 12 This is a structural schematic diagram of a third embodiment of a novel connector according to this application.

[0042] Figure 13 This is a cross-sectional schematic diagram of a third embodiment of a novel connector according to this application.

[0043] The reference numerals in the figure are as follows: 1. Valve core; 110. Connecting stud; 115. Annular stepped portion; 120. First turning driven portion; 130. First fluid passage; 131. Straight section; 132. Side outlet section; 140. Mounting hole; 142. First stepped groove; 150. Cylinder; 160. Stepped shaft; 161. Support section; 162. Functional section; 2. Adjusting connector; 210. Second turning driven portion; 2 20. Second fluid passage; 230. Double-cone ferrule; 240. Tube liner; 241. Suona bowl; 242. Tube section; 250. Connecting hole; 260. Annular connecting groove; 3. Sealing ring; 4. Adapter seat; 410. First rotating connecting hole; 411. Abutting end face; 412. Annular groove; 420. Second rotating connecting hole; 422. Second stepped groove; 430. Receiving groove; 5. Sealing gasket; 6. Infusion space. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. It is understood that the accompanying drawings are provided for reference and illustration only and are not intended to limit the present utility model. The connection relationships shown in the drawings are only for clear description and do not limit the connection method.

[0045] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; or as a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0046] It should also be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] Example 1

[0048] Please refer to Figures 1-3 and Figures 8-10 This embodiment provides a novel connector, comprising:

[0049] Valve core 1, one end of which is a connecting stud 110 with external threads;

[0050] When this new type of connector is applied to a guide rail slider, the guide rail slider has the same structure as the existing guide rail slider, with corresponding threaded holes, and the connecting stud 110 is threadedly connected and fixed to the threaded holes on the guide rail slider through external threads.

[0051] In some preferred embodiments, the external thread of the connecting stud 110 can be a tapered thread, which can achieve a seal without fully screwing the connecting stud 110 into the threaded hole on the guide rail slider through the external thread.

[0052] The outer wall of the valve core 1 or the end away from the connecting stud 110 is provided with a first screwing driven part 120;

[0053] The first screwing driven part 120 can be a screwing groove designed on the end face of the valve core 1 away from the connecting stud 110. The screwing groove can be any one of the following: straight, cross, or internal hexagonal. It can be driven to rotate using a screwdriver or wrench.

[0054] The first screw-driven part 120 can also be designed on the outer wall of the valve core 1. It is a regular hexagonal prism and can be turned by a hexagonal wrench to drive the entire valve core 1 to rotate, and connect or disconnect from the guide rail slider.

[0055] The valve core 1 is provided with a first liquid flow channel 130 inside;

[0056] Once the valve core 1 is fully fixed to the guide rail slider, the outlet of the first fluid flow channel 130 is connected to the corresponding oil inlet channel of the guide rail slider.

[0057] Adjustable connector 2, which is rotatably connected to valve core 1 and is provided with locking damping;

[0058] The adjusting connector 2 is provided with a second turning driven part 210. The second turning driven part 210 can be a regular hexagonal prism located at a suitable position on the outer wall of the adjusting connector 2, and can be turned by a hexagonal wrench to drive the entire adjusting connector 2 to rotate.

[0059] The function of the locking damping is to lock the adjusting connector 2 and the valve core 1 together when the turning force on the second turning driven part 210 is removed;

[0060] The adjusting connector 2 is provided with a second liquid flow channel 220 that is connected to the liquid inlet of the first liquid flow channel 130; the liquid inlet of the second liquid flow channel 220 is used to connect to an external liquid supply device.

[0061] When the external liquid supply device is an oil tank or oil jug, and its shape is irregular, such as a cuboid, when the oil tank or oil jug is in some positions relative to the guide rail slider, it will interfere with the device passing along the length of the guide rail, thus creating a mechanical risk; when the oil tank or oil jug is in other positions relative to the guide rail slider, it will not interfere with the device passing along the length of the guide rail.

[0062] The reason for adding the adjusting connector 2 is that after the valve core 1 and the guide rail slider are fixed by a threaded connection, the adjusting connector 2 can be used to rotate relative to the valve core 1 for adjustment. Furthermore, when the tightening force on the second screw-driven part 210 is released, the adjusting connector 2 and the valve core 1 are locked together by a damping locking action. The inlet of the second fluid passage 220 is used to connect to an external fluid supply device. The oil from the oil tank or reservoir passes through the inlet of the second fluid passage 220, the second fluid passage 220, and the first fluid passage 130, finally reaching the corresponding oil-requiring part of the guide rail slider. The oil tank or reservoir can be adjusted to a suitable position by rotating relative to the valve core 1 and the guide rail slider using the adjusting connector 2, ensuring no interference with devices passing along the length of the guide rail and increasing user convenience.

[0063] Please refer to Figures 1-3 and Figures 8-10 The adjusting connector 2 further includes a double-cone ferrule 230 and a tube liner 240. The adjusting connector 2 has a connecting hole 250. The double-cone ferrule 230 is located between the valve core 1 and the adjusting connector 2. The tube liner 240 includes a suona bowl 241 and a tube 242 connected to the suona bowl 241. The suona bowl 241 is connected to the first liquid flow channel 130. The tube 242 extends into the connecting hole 250. The outer wall of the tube 242 and the inner wall of the connecting hole 250 form an annular connecting groove 260. The inner hole of the tube 242 and the opening of the suona bowl 241 form the second liquid flow channel 220.

[0064] The two ends of the double-cone ferrule 230 are used to hold the valve core 1 against the corresponding holes on the adjusting connector 2 to prevent leakage.

[0065] The annular connecting groove 260 is used to connect to an external liquid supply device.

[0066] Please refer to Figures 1-3 and Figures 8-10The valve core 1 is provided with a mounting hole 140 that connects and communicates with the first liquid flow channel 130. The wall of the mounting hole 140 is provided with a first internal thread (not shown). The outer wall of the adjusting connector 2 is provided with an external thread that matches the first internal thread. The adjusting connector 2 and the valve core 1 are rotatably connected through the external thread and the first internal thread.

[0067] The valve core 1 and the adjusting connector 2 are rotatably connected through the first internal thread on the wall of the mounting hole 140 and the external thread on the outer wall of the adjusting connector 2. When the adjusting connector 2 is screwed into the mounting hole 140 to a predetermined depth, the adjusting connector 2 and the valve core 1 are locked and fixed relative to each other when the screwing force on the second screwing driven part 210 is removed.

[0068] Please refer to Figures 1-3 and Figures 8-10 The mounting hole 140 is adjacent to the inlet of the first liquid flow channel 130 and is provided with a first stepped groove 142 with a diameter smaller than the diameter of the first internal thread; the edge of the suona bowl 241 abuts against the annular wall of the first stepped groove 142 and / or the end face of the suona bowl 241 abuts against the bottom wall of the first stepped groove 142.

[0069] The double-cone sleeve 230 can abut against the back edge of the opening surface of the suona bowl 241 so that the end face of the suona bowl 241 is tightly against the bottom wall of the first stepped groove 142, preventing liquid from leaking out from the gap.

[0070] Please refer to Figures 1-3 and Figures 8-10 The valve core 1 has a rotatable structure, and the connecting stud 110 has a sealing ring 3 fitted on its outer wall.

[0071] The sealing ring 3 is used to improve the sealing performance of the connection between the valve core 1 and the liquid supply device.

[0072] Please refer to Figures 1-3 and Figures 8-10 An annular step portion 115, which is larger than or equal to the outer diameter of the connecting stud 110 and smaller than the outer diameter of the first screwing driven part 120, is provided between the first screwing driven part 120 and the connecting stud 110. The sealing ring 3 is sleeved and connected to the annular step portion 115.

[0073] In this embodiment, the first screwing driven part 120 is designed on the outer wall of the valve core 1, is a regular hexagonal prism, and has a structure that can be screwed by a hexagonal wrench.

[0074] The annular step portion 115 allows the sealing ring 3 to better perform its sealing function.

[0075] Preferably, sealing ring 3 is a high-pressure sealing ring. Its specification is a pressure resistance greater than 300 bar.

[0076] Example 2

[0077] Please refer to Figures 4-11 It includes an adapter 4 and a sealing gasket 5; the adapter 4 includes a first rotatable connection hole 410 and a second rotatable connection hole 420 that are interconnected.

[0078] An included angle is provided between the first rotary connecting hole 410 and the second rotary connecting hole 420;

[0079] The included angle can be customized according to different customer needs. In the preferred embodiment of Example 1, the valve core 1 and the adjusting connector 2 are coaxial structures.

[0080] The valve core 1 is a cylinder 150 at the end away from the connecting stud 110, and the first screwing driven part 120 is provided on the end face of the cylinder 150. The first screwing driven part 120 can be a screwing groove, which can be any one of the following: straight, cross, or internal hexagon, which is equivalent to forming a nut structure in the prior art.

[0081] One end of the first rotating connection hole 410 is provided with a receiving groove 430 with an outer diameter larger than that of the first rotating connection hole 410, and the cylinder 150 is disposed in the receiving groove 430; preferably, the cylinder 150 and the receiving groove 430 are in transition fit.

[0082] A stepped shaft 160 is provided between the cylinder 150 and the connecting stud 110, through which the first rotating connection hole 410 passes; the stepped shaft 160 includes a support section 161 that is rotatably connected to the first rotating connection hole 410 through a transition fit, and a functional section 162 located between the support section 161 and the cylinder 150.

[0083] The support section 161 is transitionally fitted with the first rotating connection hole 410. Compared with the design of the two as a clearance fit, it can better prevent liquid from leaking out from the infusion space 6 along the gap between the two, while not excessively affecting the rotation of the valve core 1 relative to the adapter seat 4.

[0084] The outer diameter of the functional segment 162 is smaller than the diameter of the first rotating connection hole 410, so as to form an infusion space 6;

[0085] The first fluid passage 130 includes at least a straight section 131 through which a connecting stud 110 and a stepped shaft 160 pass, and a side outlet section 132 through which the functional section 162 passes and connects the straight section 131 and the infusion space 6.

[0086] The adjusting connector 2 is rotatably connected to the second rotating connection hole 420 to achieve an indirect rotatable connection with the valve core 1; the second liquid passage 220 is connected to the infusion space 6 through the second rotating connection hole 420 to achieve a corresponding connection between the outlet of the second liquid passage 220 and the inlet of the first liquid passage 130.

[0087] The sealing gasket 5 is disposed in the receiving groove 430, located between the bottom wall of the receiving groove 430 and the end face of the cylinder 150, and the stepped shaft 160 passes through the sealing gasket 5.

[0088] In this second embodiment, the connecting stud 110 of the valve core 1 can be threadedly connected to the threaded hole on the guide rail slider via its external thread. Before complete fixation, the adapter 4 can rotate relative to the valve core 1. When the valve core 1 is fixed, the end face of the cylindrical body 150 of the valve core 1 presses against the sealing gasket 5 and the adapter 4, forming a seal on the infusion space 6. The annular stepped portion 115 cooperates with the sealing ring 3 to prevent liquid from leaking out through the gap between the external thread of the connecting stud 110 and the threaded hole on the guide rail slider from the outlet end of the first liquid flow channel 130.

[0089] Therefore, the adjusting connector 2, which is rotatably connected to the second rotating connection hole 420, can be adjusted in the first rotation direction along with the adapter 4, and the external liquid supply device connected to the adjusting connector 2, such as an oil tank, an oil jug, or an oil pipe connected to an oil pipe joint, can also be adjusted in the same direction.

[0090] Next, the adjusting connector 2 is rotatably connected to the second rotating connection hole 420. A locking damping mechanism can also be set. When the tightening force on the second rotating driven part 210 is released, the adjusting connector 2 and the adapter 4 are locked and fixed. Then, the external liquid supply device connected to the adjusting connector 2, such as an oil tank, oil jug, or oil pipe connected to an oil pipe joint, can again achieve orientation adjustment.

[0091] This adjustment structure allows the external liquid supply device to be positioned appropriately, preventing interference with devices passing along the guide rail and increasing user convenience.

[0092] The design of setting the first fluid passage 130 inside the valve core 1 as a straight section 131 and a side outlet section 132, combined with the infusion space 6, is ingenious and reasonable.

[0093] Please refer to Figure 5 , Figures 8-11The adjusting connector 2 further includes a double-cone retaining sleeve 230 and a tube liner 240. The adjusting connector 2 has a connecting hole 250. The double-cone retaining sleeve 230 is located between the adapter 4 and the adjusting connector 2. The tube liner 240 includes a suona bowl 241 and a tube 242 connected to the suona bowl 241. The suona bowl 241 is connected to the infusion space 6. The tube 242 extends into the connecting hole 250. The outer wall of the tube 242 and the inner wall of the connecting hole 250 form an annular connecting groove 260. The inner hole of the tube 242 and the opening of the suona bowl 241 form the second fluid passage 220.

[0094] Please refer to Figure 4 and Figure 5 , Figures 8-11 The second rotating connecting hole 420 has a second internal thread (not shown) on its wall, and the adjusting connecting piece 2 has an external thread that matches the second internal thread on its outer wall;

[0095] The second rotating connection hole 420 is adjacent to the infusion space 6 and is provided with a second stepped groove 422 with a diameter smaller than the diameter of the second internal thread; the edge of the suona bowl 241 abuts against the annular wall of the second stepped groove 422 and / or the end face of the suona bowl 241 abuts against the bottom wall of the second stepped groove 422.

[0096] Please refer to Figure 5 and Figure 11 The first rotating connection hole 410 has an end away from the receiving groove 430, and the opening is provided with an abutting end face 411. The abutting end face 411 is provided with an annular groove 412 for accommodating and placing the sealing ring 3.

[0097] When the valve core 1 is fixed, the end face of the cylinder 150 at one end of the valve core 1 presses against the sealing gasket 5 and the adapter 4. The abutting end face 411 of the adapter 4 presses against the liquid supply device, and finally the adapter 4 stops rotating.

[0098] When this new type of connector is applied to a guide rail slider, the side of the guide rail slider is generally flat. The end of the first rotating connection hole 410 away from the receiving groove 430 is provided with an abutment end face 411, which can fit well with the side plane of the guide rail slider and cooperate with the sealing ring 3 and the annular groove 412 to achieve a certain leak-proof effect.

[0099] Example 3

[0100] Please refer to Figure 12 and Figure 13 It includes an adapter 4 and a sealing gasket 5; the adapter 4 includes a first rotating connection hole 410 and a second rotating connection hole 420 that are interconnected; there is an included angle between the first rotating connection hole 410 and the second rotating connection hole 420;

[0101] The first screwing driven part 120 is located outside the port of the first rotating connection hole 410;

[0102] The first screwing driven part 120 can be a hexagonal nut structure, a slotted screw or a cross-slot structure, or a combination of a hexagonal nut and a slotted screw. The diameter of the first screwing driven part 120 is larger than the diameter of the opening of the first rotating connecting hole 410.

[0103] A stepped shaft 160 is provided between the first screwing driven part 120 and the connecting stud 110, passing through the first rotating connecting hole 410; the stepped shaft 160 includes a support section 161 that is rotatably connected to the first rotating connecting hole 410 through a transition fit, and a functional section 162 located between the support section 161 and the first screwing driven part 120; the outer diameter of the functional section 162 is smaller than the diameter of the first rotating connecting hole 410, so as to form an infusion space 6;

[0104] The first fluid passage 130 includes at least a straight section 131 through which a connecting stud 110 and a stepped shaft 160 pass, and a side outlet section 132 through which the functional section 162 passes and connects the straight section 131 and the infusion space 6.

[0105] The adjusting connector 2 is rotatably connected to the second rotating connection hole 420 to achieve an indirect rotatable connection with the valve core 1; the second liquid passage 220 is connected to the infusion space 6 through the second rotating connection hole 420 to achieve a corresponding connection between the outlet of the second liquid passage 220 and the inlet of the first liquid passage 130.

[0106] The sealing gasket 5 is sleeved on the stepped shaft 160 and is located between the port of the first rotating connection hole 410 and the first screwing driven part 120.

[0107] Compared to Example 2, this embodiment has a lower manufacturing cost.

[0108] When the connecting stud 110 is tightened with the corresponding threaded hole, the first screwing driven part 120 is also tightened against the sealing gasket 5, blocking the port of the first rotating connecting hole 410.

[0109] It is worth noting that the novel connection joint technology provided in this application is not only applicable to guide rail sliders as oil injection joints, but can also be used in other equipment products.

[0110] In the specification and claims of this application, the terms "comprising / including" and "having / including" and variations thereof are used to specify the presence of the stated features, values, steps or components, but do not exclude the presence or addition of one or more other features, values, steps, components or combinations thereof.

[0111] Some features of this invention are described in different embodiments for clarity; however, these features may also be described in combination in a single embodiment. Conversely, some features of this invention are described only in a single embodiment for brevity; however, these features may also be described individually or in any suitable combination in different embodiments.

[0112] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel connecting joint, characterized in that, include: The valve core has a connecting stud with external threads at one end; a first screwing driven part is provided on the outer wall of the valve core or at the end away from the connecting stud; and a first fluid passage is provided inside the valve core. An adjusting connector is rotatably connected to the valve core and is provided with locking damping; the adjusting connector is provided with a second turning driven part, and when the turning force on the second turning driven part is released, the adjusting connector and the valve core are locked and fixed respectively; the adjusting connector is provided with a second liquid flow channel corresponding to the liquid inlet of the first liquid flow channel; the liquid inlet of the second liquid flow channel is used to connect to an external liquid supply device.

2. The novel connector according to claim 1, characterized in that, The adjusting connector further includes a double-cone ferrule and a tube liner. The adjusting connector has a connecting hole. The double-cone ferrule is located between the valve core and the adjusting connector. The tube liner includes a suona bowl and a tube connected to the suona bowl. The suona bowl is connected to the first liquid flow channel. The tube extends into the connecting hole. The outer wall of the tube and the inner wall of the connecting hole form an annular connecting groove. The inner hole of the tube and the opening of the suona bowl constitute the second liquid flow channel.

3. The novel connecting joint according to claim 2, characterized in that, The valve core is provided with a mounting hole that connects and communicates with the first fluid passage. The wall of the mounting hole is provided with a first internal thread. The outer wall of the adjusting connector is provided with an external thread that matches the first internal thread. The adjusting connector and the valve core are rotatably connected through the external thread and the first internal thread.

4. A novel connecting joint according to claim 3, characterized in that, The mounting hole is adjacent to the inlet of the first liquid flow channel and has a first stepped groove with a diameter smaller than the diameter of the first internal thread; the edge of the suona bowl abuts against the annular wall of the first stepped groove and / or the end face of the suona bowl abuts against the bottom wall of the first stepped groove.

5. A novel connecting joint according to claim 1, characterized in that, The valve core has a circumferential structure, and a sealing ring is fitted onto the outer wall of the connecting stud.

6. A novel connecting joint according to claim 5, characterized in that, An annular stepped portion with a diameter greater than or equal to the outer diameter of the connecting stud and smaller than the outer diameter of the first screwing driven part is provided between the first screwing driven part and the connecting stud, and the sealing ring is sleeved and connected to the annular stepped portion.

7. A novel connecting joint according to claim 1 or claim 5, characterized in that, The adapter includes an adapter base and a sealing gasket; the adapter base includes a first rotatable connection hole and a second rotatable connection hole that are interconnected; an angle is provided between the first rotatable connection hole and the second rotatable connection hole; The valve core is cylindrical at the end furthest from the connecting stud, and the first screwing follower is located on the end face of the cylinder. One end of the first rotating connection hole has a receiving groove with an outer diameter larger than the first rotating connection hole, and the cylinder is at least partially located within the receiving groove. A stepped shaft passing through the first rotating connection hole is provided between the cylinder and the connecting stud. The stepped shaft includes a support section that is rotatably connected to the first rotating connection hole through a transition fit, and a functional section located between the support section and the cylinder. The outer diameter of the functional section is smaller than the diameter of the first rotating connection hole to form an infusion space. The first fluid passage includes at least a straight section through which a connecting stud and a stepped shaft pass, and a side outlet section through which the functional section passes and connects the straight section and the fluid infusion space; The adjusting connector is rotatably connected to the second rotating connection hole to achieve an indirect rotatable connection with the valve core; the second liquid passage is connected to the infusion space through the second rotating connection hole to achieve a corresponding connection between the outlet of the second liquid passage and the inlet of the first liquid passage. The sealing gasket is disposed in the receiving groove, located between the bottom wall of the receiving groove and the end face of the cylinder, and the stepped shaft passes through the sealing gasket.

8. A novel connecting joint according to claim 1 or claim 5, characterized in that, The adapter includes an adapter base and a sealing gasket; the adapter base includes a first rotatable connection hole and a second rotatable connection hole that are interconnected; an angle is provided between the first rotatable connection hole and the second rotatable connection hole; The first screwing driven part is located outside the port of the first rotating connection hole; a stepped shaft passing through the first rotating connection hole is provided between the first screwing driven part and the connecting stud; the stepped shaft includes a support section that is rotatably connected to the first rotating connection hole through a transition fit, and a functional section located between the support section and the first screwing driven part; the outer diameter of the functional section is smaller than the diameter of the first rotating connection hole to form an infusion space; The first fluid passage includes at least a straight section through which a connecting stud and a stepped shaft pass, and a side outlet section through which the functional section passes and connects the straight section and the fluid infusion space; The adjusting connector is rotatably connected to the second rotating connection hole to achieve an indirect rotatable connection with the valve core; the second liquid passage is connected to the infusion space through the second rotating connection hole to achieve a corresponding connection between the outlet of the second liquid passage and the inlet of the first liquid passage. The sealing gasket is fitted onto the stepped shaft and is located between the first rotating connection hole port and the first screwing driven part.

9. A novel connecting joint according to claim 7, characterized in that, The adjusting connector further includes a double-cone ferrule and a tube liner. The adjusting connector has a connecting hole, and the double-cone ferrule is disposed between the adapter and the adjusting connector. The tube liner includes a suona bowl and a tube connected to the suona bowl. The suona bowl is connected to the infusion space. The tube extends into the connecting hole. The outer wall of the tube and the inner wall of the connecting hole form an annular connecting groove. The inner hole of the tube and the opening of the suona bowl constitute the second fluid passage.

10. A novel connecting joint according to claim 9, characterized in that, The second rotating connection hole wall is provided with a second internal thread, and the outer wall of the adjusting connector is provided with an external thread that matches the second internal thread; The second rotating connection hole is adjacent to the infusion space and has a second stepped groove with a diameter smaller than the diameter of the second internal thread; the edge of the suona bowl abuts against the annular wall of the second stepped groove and / or the end face of the suona bowl abuts against the bottom wall of the second stepped groove.

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