Sealing retaining damping nut

Abstract

The utility model relates to a sealing retaining damping nut which comprises a main nut, internal threads are machined in the main nut, and the outer wall of one side of the main nut is fixedly connected with a connecting ring. The diameter of an inner hole of the auxiliary nut is larger than that of a threaded hole of the main nut, and an inserting groove connected with the connecting ring is formed in the side, close to the main nut, of the auxiliary nut. The utility model relates to the technical field of nuts. According to the sealing retaining damping nut, the main nut and the auxiliary nut are arranged, and the mutually-meshed face ratchets are arranged on the outer walls of the sides, making contact with each other, of the main nut and the auxiliary nut, so that the face ratchets of the auxiliary nut can be extruded through the face ratchets of the main nut when the sealing retaining damping nut is installed; the main nut rotates along the inclined face of the face ratchets under extrusion of the face ratchets, so that the main nut counteracts the trend of reverse rotation caused by machine vibration, and the installation firmness degree of the main nut and the auxiliary nut is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to a sealed anti-loosening damping nut. Background Art

[0002] In engineering and mechanical equipment, anti-loosening nuts are widely used in various occasions where it is necessary to prevent the anchor rod from retreating or loosening. Through ingenious design and working principle, the anti-loosening nut ensures that the anchor rod maintains a stable position under load and vibration, preventing unnecessary loosening and retreat.

[0003] In the prior art, during the construction process of anchoring drilling and grouting, basically drilling and grouting are carried out integrally. If an ordinary nut is used, it is necessary to drill to the required depth of the engineering construction, then disconnect from the drilling equipment, and then sequentially assemble the grouting stopper, backing plate, and nut on the anchor rod in sequence, and then carry out anchoring grouting. The construction process is cumbersome and the procedures are complex. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a sealed anti-loosening damping nut to facilitate solving the technical problems mentioned in the above background art.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] The sealed anti-loosening damping nut includes a main nut with an internal thread machined therein, and a connecting ring fixedly connected to one side outer wall thereof;

[0007] A sub-nut, the inner hole diameter of which is larger than the thread hole diameter of the main nut, and a slot for connecting with the connecting ring is opened on one side close to the main nut;

[0008] A rubber sleeve, which is embedded in the middle of the inner hole of the sub-nut;

[0009] On the sides of the main nut and the sub-nut close to each other, surface ratchets are machined, and the two surface ratchets are engaged with each other.

[0010] Further, an annular groove for connecting the rubber sleeve is opened on the inner hole wall of the sub-nut, and the upper and lower inner walls of the annular groove are gradually inclined outward from outside to inside, so that the cross-section of the annular groove is trapezoidal.

[0011] Further, the inner diameter of the rubber sleeve is the same as the inner diameter of the thread hole of the main nut, and the same internal thread as the main nut is machined on the inner hole wall of the rubber sleeve.

[0012] Further, a limiting portion is formed by the protrusion of the connecting ring on the side away from the main nut, and a limiting groove for clamping the limiting portion is opened in the slot.

[0013] Further, the depth of the limiting groove is greater than the thickness of the limiting portion. When the limiting portion slides to the side of the limiting groove close to the face ratchet teeth, the face ratchet teeth of the main nut and the sub-nut are separated.

[0014] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0015] 1. For this sealing and anti-backlash damping nut, by setting the main nut and the sub-nut, and on the outer walls of the mutually contacting sides of the main nut and the sub-nut, there are mutually engaging face ratchet teeth. When installing the sealing and anti-backlash damping nut, the face ratchet teeth of the main nut can be used to squeeze the face ratchet teeth of the sub-nut, so that the main nut rotates along the inclined plane of the face ratchet teeth under the extrusion of the face ratchet teeth, thereby enabling the main nut to counteract the tendency of reverse rotation due to machine vibration, and being used to ensure the installation firmness of the main nut and the sub-nut;

[0016] 2. For this sealing and anti-backlash damping nut, by setting the rubber sleeve, when the sub-nut is sleeved outside the anchor rod, the rubber sleeve can be used to cover the outside of the anchor rod, so that the rubber sleeve is closely attached to the anchor rod. The slurry flowing back during the grouting process will not overflow through the anchor rod and the nut, achieving a sealing effect, preventing slurry leakage, and improving the engineering quality of pressure grouting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural view of the sealing and anti-backlash damping nut of the present utility model.

[0019] Figure 2 It is a schematic internal structural view of the sealing and anti-backlash damping nut of the present utility model.

[0020] Figure 3 It is a schematic structural view of the main nut in the sealing and anti-backlash damping nut of the present utility model.

[0021] Figure 4 It is a schematic structural view of the sub-nut in the sealing and anti-backlash damping nut of the present utility model.

[0022] In the figure, 1, main nut; 2, sub-nut; 3, rubber sleeve; 4, connecting ring; 5, slot; 6, face ratchet teeth; 7, annular groove; 8, limiting portion; 9, limiting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further elaborates on the present utility model in detail with reference to the drawings.

[0024] Embodiment:

[0025] Refer to Figure 1 - Figure 4 , the sealing and anti-backoff damping nut disclosed by the present utility model comprises a main nut 1, which is internally machined with internal threads, and a connecting ring 4 is fixedly connected to one side outer wall thereof;

[0026] A sub-nut 2, the inner hole diameter of which is larger than the thread hole diameter of the main nut 1, and a slot 5 connected to the connecting ring 4 is provided on one side close to the main nut 1;

[0027] A rubber sleeve 3, which is embedded in the middle of the inner hole of the sub-nut 2;

[0028] On one side of the main nut 1 and the sub-nut 2 close to each other, surface ratchets 6 are machined, and the two surface ratchets 6 are engaged with each other.

[0029] In this embodiment, since after an ordinary nut is drilled to the required depth of the engineering construction, it is necessary to separate from the drilling equipment, and then the grout stop plug, the backing plate, and the nut are sequentially assembled on the anchor rod, and then the anchoring grouting is carried out, the construction process is cumbersome and the procedures are complex.

[0030] Therefore, it can be observed Figure 1 and Figure 2 that by providing the main nut 1 and the sub-nut 2, and machining surface ratchets 6 on the side walls of the main nut 1 and the sub-nut 2 close to each other, and at the same time making the two surface ratchets 6 engage with each other, when the main nut 1 and the sub-nut 2 are in use, the sub-nut 2 can be first sleeved on the anchor rod, and then the main nut 1 is threadedly connected to the anchor rod. As the main nut 1 is tightened, the sub-nut 2 will be pressed against the outer shell of the equipment. At this time, a wrench is used to fix the sub-nut 2 to prevent it from rotating with the main nut 1, and then the main nut 1 is further tightened, so that the main nut 1 uses the inclined surface of the surface ratchet 6 to press down the sub-nut 2. After reaching the set torque, the installation of the main nut 1 and the sub-nut 2 is completed.

[0031] After the installation is completed, as the machine vibrates, the main nut 1 loosens and rotates in the reverse direction. However, the surface ratchet 6 of the main nut 1 will be squeezed by the surface ratchet 6 of the sub-nut 2, so that the main nut 1 rotates along the inclined surface of the surface ratchet 6 under the extrusion of the surface ratchet 6, thereby enabling the main nut 1 to offset the tendency of reverse rotation due to machine vibration, and being used to ensure the installation firmness of the main nut 1 and the sub-nut 2.

[0032] By connecting a connecting ring 4 to one side of the main nut 1, and providing a slot 5 for inserting the connecting ring 4 on the outer wall of the sub-nut 2, the main nut 1 and the sub-nut 2 can be connected together during use, which is convenient for the use of the sealing and anti-backoff damping nut.

[0033] And it can be observed Figure 2It can be found that a rubber sleeve 3 is connected to the middle of the inner hole of the auxiliary nut 2. When the auxiliary nut 2 is sleeved on the outside of the anchor rod, the rubber sleeve 3 can be used to wrap the outside of the anchor rod, so that the rubber sleeve 3 is closely attached to the anchor rod. The slurry flowing back during the grouting process will not overflow through the anchor rod and the nut, achieving a sealing effect, preventing slurry leakage, and improving the engineering quality of pressure grouting.

[0034] In a further preferred embodiment of the present invention, as Figure 2 shown, an annular groove 7 for connecting the rubber sleeve 3 is provided on the inner hole wall of the auxiliary nut 2. The upper and lower inner walls of the annular groove 7 are gradually inclined outward from the outside to the inside, so that the cross-section of the annular groove 7 is trapezoidal.

[0035] In this embodiment, by providing the annular groove 7 for connecting the rubber sleeve 3 on the inner hole wall of the auxiliary nut 2, it is convenient to install the rubber sleeve 3, making the production of the sealing anti-backoff damping nut more convenient. And by making the upper and lower inner walls of the annular groove 7 gradually inclined outward from the outside to the inside so that the cross-section of the annular groove 7 is trapezoidal, the rubber sleeve 3 can be extruded by the inner side wall of the annular groove 7 after being embedded in the annular groove 7, which can be used to prevent the rubber sleeve 3 from being rubbed by the anchor rod and slipping out of the annular groove 7 during use, to ensure the sealing stability of the rubber sleeve 3.

[0036] In a further preferred embodiment of the present invention, as Figure 2 shown, the inner diameter of the rubber sleeve 3 is the same as the inner diameter of the threaded hole of the main nut 1, and the same internal thread as the main nut 1 is processed on the inner hole wall of the rubber sleeve 3.

[0037] In this embodiment, by making the inner diameter of the rubber sleeve 3 the same as the inner diameter of the threaded hole of the main nut 1 and processing the same internal thread as the main nut 1 on the inner hole wall of the rubber sleeve 3 at the same time, the rubber sleeve 3 can be threadedly connected to the anchor rod when the sealing anti-backoff damping nut is installed, which can effectively improve the fitting degree between the rubber sleeve 3 and the outer wall of the anchor rod and further improve the sealing performance of the sealing anti-backoff damping nut.

[0038] In a further preferred embodiment of the present invention, as Figure 2 shown, a limiting portion 8 is convexly formed on the side of the connecting ring 4 away from the main nut 1, and a limiting groove 9 for engaging with the limiting portion 8 is provided in the slot 5;

[0039] The depth of the limiting groove 9 is greater than the thickness of the limiting portion 8, so that when the limiting portion 8 slides to the side of the limiting groove 9 close to the face ratchet 6, the face ratchets 6 of the main nut 1 and the auxiliary nut 2 are separated.

[0040] In this embodiment, since the main nut 1 and the secondary nut 2 are connected together only by the connecting ring 4 and the slot 5, the sealing stop and damping nut is easier to install when in use. However, due to the setting of the face ratchet 6, the face ratchet 6 of the secondary nut 2 will be squeezed when the main nut 1 is tightened, so that the bite strength between the face ratchet 6 between the main nut 1 and the secondary nut 2 is increased, which makes it impossible to fix the connection between the connecting ring 4 and the slot 5, so that the main nut 1 and the secondary nut 2 are easy to loosen when stored, resulting in the need to pick up the main nut 1 and the secondary nut 2 and install them for use when the sealing stop and damping nut is in use, affecting the installation efficiency of the sealing stop and damping nut.

[0041] So observe Figure 2 It can be found that a limiting portion 8 is provided on the outer side of the connecting ring 4, and a limiting groove 9 is opened in the slot 5, so that the main nut 1 and the secondary nut 2 are restricted by the limiting portion 8 and the limiting groove 9 when they are stored to prevent them from separating, so that the main nut 1 and the secondary nut 2 remain connected as a whole, making the sealing stop damping nut more convenient to take when in use.

[0042] At the same time, the depth of the limiting groove 9 is made greater than the thickness of the limiting part 8, so that when the limiting part 8 slides to the side of the limiting groove 9 close to the surface ratchet 6, the surface ratchet 6 of the main nut 1 and the secondary nut 2 are separated, so that the secondary nut 2 can still be pressed down normally when the main nut 1 is tightened, so as to ensure the bite strength between the two surface ratchets 6.

[0043] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. Sealed stop damping nut, characterized in that: It comprises a main nut (1) with an internal thread processed inside and a connecting ring (4) fixedly connected to an outer wall on one side; The auxiliary nut (2) has an inner hole diameter larger than the threaded hole diameter of the main nut (1), and a slot (5) connected to the connecting ring (4) is provided on a side close to the main nut (1); A rubber sleeve (3) embedded in the middle of the inner hole of the secondary nut (2); The main nut (1) and the auxiliary nut (2) are both processed with face ratchet teeth (6) on one side close to each other, and the two face ratchet teeth (6) are engaged with each other.

2. The sealing stop damping nut according to claim 1, characterized in that: The inner hole wall of the secondary nut (2) is provided with an annular groove (7) for connecting with the rubber sleeve (3), and the upper and lower inner walls of the annular groove (7) are gradually inclined outward from the outside to the inside, so that the cross section of the annular groove (7) is trapezoidal.

3. The sealing stop damping nut according to claim 1, characterized in that: The inner diameter of the rubber sleeve (3) is the same as the inner diameter of the threaded hole of the main nut (1), and an internal thread identical to that of the main nut (1) is processed on the inner hole wall of the rubber sleeve (3).

4. The sealing stop damping nut according to claim 1, characterized in that: A side of the connecting ring (4) away from the main nut (1) is protruded to form a limiting portion (8), and a limiting groove (9) for clamping the limiting portion (8) is provided in the slot (5).

5. The sealing stop damping nut according to claim 4, characterized in that: The depth of the limiting groove (9) is greater than the thickness of the limiting portion (8), so that when the limiting portion (8) slides to the side of the limiting groove (9) close to the surface ratchet (6), the surface ratchet (6) of the main nut (1) and the auxiliary nut (2) are separated.

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