Gasket, transmission mechanism and seat lock bolt

Abstract

The utility model discloses a gasket, a transmission mechanism and a seat lock bolt, which comprise a gasket main body, the gasket main body is provided with an axial through hole, and a plurality of contact parts protruding out of the gasket main body are arranged on one surface of the gasket main body, which is used for contacting with an object; the transmission mechanism comprises a support, a transmission rod rotatably connected to the support and a nut connected to the end of the transmission rod in a threaded mode, the transmission rod is installed on the support through the nut, and the transmission mechanism is characterized in that the gasket is arranged between the nut and the support, and the contact part is used for making contact with the surface of the support. The axial movement of the transmission rod on the bracket is limited; the transmission mechanism can be adopted in the seat lock bolt for transmission. According to the scheme, the problem of axial movement caused by a gap between the nut and the support in the transmission mechanism can be relieved, and meanwhile the transmission part can rotate smoothly.

Description

Technical Field

[0001] The utility model relates to a gasket, in particular to a gasket, a transmission mechanism and a seat lock bolt. Background Art

[0002] During the rotation of some transmission mechanisms, especially screw transmission mechanisms, the screw needs to be supported by a bracket or other connecting parts to limit its shaking. The screw also needs to be mounted on the bracket with a nut. To prevent and facilitate the rotation of the screw, there is usually a gap between the nut and the bracket (to prevent the nut from being overly pressed against the bracket surface and affecting the screw rotation). However, this can easily lead to axial movement during actual transmission. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a gasket, a transmission mechanism, and a seat lock bolt, which can alleviate the axial movement problem caused by the gap between the nut and the bracket in the transmission mechanism, and at the same time improve the smooth rotation of the transmission parts.

[0004] To achieve the above objectives, the present invention provides the following technical solutions: a gasket comprising a gasket body having an axial through hole, and a surface of the gasket body for contacting an object is provided with a plurality of contact portions protruding from the gasket body.

[0005] As a further improvement of the present invention, the contact portion is in a spherical segment shape or a bowl shape.

[0006] As a further improvement of the present invention, a plurality of protrusions are provided on one side of the gasket body corresponding to the contact portion, and the contact portion is located on the protrusions.

[0007] As a further improvement of the present invention, the protrusion is formed by bending or curving the gasket body.

[0008] As a further improvement of the present invention, the gasket body is also coaxially connected to a partition, which is provided with a protrusion at the position corresponding to the through hole of the gasket, and the protrusion is passed through the through hole of the gasket; the partition is located on the other side of the corresponding contact part of the gasket body, and an axial through hole is provided on the protrusion.

[0009] As a further improvement of the present invention, the end portion of the protrusion is located between the end face of the gasket body corresponding to the contact portion and the plane where the end face of the contact portion is located.

[0010] A transmission mechanism is also provided, comprising a bracket, a transmission rod rotatably connected to the bracket, and a nut threadedly connected to the end of the transmission rod, wherein the transmission rod is mounted on the bracket through the nut, and is characterized in that a gasket as described in any one of the above items is provided between the nut and the bracket, and the contact portion is used to contact the surface of the bracket to limit axial movement of the transmission rod on the bracket.

[0011] As a further improvement of the present invention, a shaft sleeve is provided on the transmission rod, and the transmission rod is rotatably connected to the bracket through the shaft sleeve. After the shaft sleeve passes through the bracket toward the nut, at least a portion of it protrudes from the surface of the bracket to maintain a gap between the nut and the surface of the bracket; when the nut is installed in place, the contact portion contacts the surface of the bracket.

[0012] A transmission mechanism is also provided, including a bracket, a transmission rod rotatably connected to the bracket, and a nut threadedly connected to the end of the transmission rod, the transmission rod is installed on the bracket through the nut, the above-mentioned gasket is arranged between the nut and the bracket, and the contact portion is used to contact the surface of the bracket to limit axial movement of the transmission rod on the bracket; a shaft sleeve is provided on the transmission rod, and the transmission rod is rotatably connected to the bracket through the shaft sleeve, after the shaft sleeve passes through the bracket, at least a part of the shaft sleeve protrudes from the surface of the bracket to maintain a gap between the nut and the surface of the bracket; when the nut is installed in place, the contact portion contacts the surface of the bracket; and the protrusion of the partition abuts against the end of the shaft sleeve.

[0013] A seat lock bolt is also provided, including a driver, a transmission mechanism connected to the driver, a slide cooperated with the transmission mechanism, and a lock installed on the slide. The driver drives the slide to move through the transmission mechanism. The transmission mechanism adopts the transmission mechanism as described above. The slide is connected to the transmission rod. The driver cooperates with the transmission rod to drive the transmission rod to rotate; the transmission rod drives the slide to move axially along the transmission rod.

[0014] The beneficial effect of the present invention is that a protruding contact portion is provided on the side of the gasket body that contacts the object. When the gasket is applied between the nut and the bracket, the contact portion can contact the surface of the bracket. While a certain gap is left between the nut and the bracket to avoid excessive compression affecting the rotation of the transmission component, the axial movement of the transmission rod is limited by the supporting effect of the contact portion, which effectively solves the axial movement problem caused by the existence of the gap in the prior art and improves the stability of the transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the seat lock structure of the present utility model;

[0016] Figure 2 This is a schematic diagram of a partial seat lock structure of the present invention;

[0017] Figure 3This is a schematic diagram of the cross-sectional structure of the transmission mechanism of the present utility model;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of part of the transmission mechanism of the utility model;

[0019] Figure 5 This is a three-dimensional schematic diagram of the gasket and partition matching structure of the utility model;

[0020] Figure 6 This is a side view schematic diagram of the gasket and partition matching structure of the utility model;

[0021] Figure 7 This is a front perspective schematic diagram of the gasket of the present utility model;

[0022] Figure 8 This is a three-dimensional schematic diagram of the back side of the gasket of the present invention;

[0023] Figure 9 This is a three-dimensional schematic diagram of the partition of the utility model;

[0024] Figure 10 for Figure 3 Enlarged view of part A in .

[0025] Figure numbers: 1. Gasket body; 11. Contact portion; 12. Protrusion; 2. Partition; 21. Protrusion; 3. Bracket; 4. Transmission rod; 5. Nut; 6. Bushing; 7. Driver; 8. Slide; 9. Lock. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0027] Reference Figure 1-10 As shown,

[0028] Example 1

[0029] Reference Figure 7 and 8 As shown, a gasket includes a gasket body 1 having an axial through hole. A surface of the gasket body 1 for contacting an object is provided with a plurality of contact portions 11 protruding from the gasket body 1 .

[0030] This gasket can be used between the nut 5 and bracket 3 of a transmission mechanism. The axial through-hole of the gasket body 1 is designed to allow the transmission rod 4 to pass through, allowing the gasket to be sleeved onto the transmission rod 4 and positioned between the nut 5 and bracket 3. When the nut 5 is tightened onto the end of the transmission rod 4, the side of the gasket body 1 facing the bracket 3 (i.e., the side provided with the contact portion 11) faces the bracket 3. The protruding contact portion 11 directly contacts the surface of the bracket 3, while the remaining portion of the gasket body 1 maintains a gap with the surface of the bracket 3. Because the contact portion 11 protrudes from the gasket body 1, its contact area with the bracket 3 is relatively small. This allows the gasket body 1 to axially limit the transmission rod 4 through the support of the contact portion 11, limiting axial movement of the transmission rod 4 during rotation. It also prevents excessive compression caused by large-area contact between the gasket body 1 and the bracket 3 surface, ensuring smooth rotation of the transmission rod 4, effectively balancing the clearance requirement and the anti-movement requirement. The contact portion 11 can be a plurality of raised points or an annular structure extending circumferentially along the gasket body 1.

[0031] As an alternative, refer to Figure 5 、 6 As shown in Figures 7 and 7, the contact portion 11 is in a spherical segment shape or a bowl shape.

[0032] The spherical or bowl-shaped contact portion 11 protrudes from the side of the gasket body 1 facing the bracket 3. When contact portion 11 contacts the surface of bracket 3, the curved surface of the spherical or bowl-shaped contact portion 11 or the convex curved edge of the bowl-shaped contact portion 11 forms point contact or small-area line contact with bracket 3. Compared to planar contact, this further reduces the contact area and the impact of contact friction on the rotation of the transmission rod 4. Furthermore, the spherical or bowl-shaped structure possesses a certain degree of elastic deformation capability. When the transmission rod 4 experiences slight axial movement, the contact portion 11 can cushion the impact force through slight deformation, thereby both enhancing the effectiveness of limiting axial movement and preventing component wear caused by rigid contact.

[0033] Optionally, a plurality of protrusions 12 are provided on one side of the gasket body 1 corresponding to the contact portion 11 , and the contact portion 11 is located on the protrusions 12 .

[0034] The raised portion 12 is provided on the side of the gasket body 1 facing the bracket 3, and the contact portion 11 is located at the end of the raised portion 12. The provision of the raised portion 12 increases the protruding height of the contact portion 11 relative to the gasket body 1, and the contact pressure between the contact portion 11 and the bracket 3 can be controlled by adjusting the height of the raised portion 12 according to actual needs. When the nut 5 is tightened, the raised portion 12 supports the contact between the contact portion 11 and the bracket 3. The structural strength of the raised portion 12 itself can enhance the bearing capacity of the contact portion 11, prevent the contact portion 11 from being excessively deformed due to pressure, and ensure that the contact portion 11 can always effectively limit the axial movement of the transmission rod 4. At the same time, the connection between the raised portion 12 and the gasket body 1 makes the overall structure more stable.

[0035] In a further optional arrangement, the protrusion 12 is formed by bending or curving the gasket body 1 .

[0036] The gasket body 1 is bent or curved to form the raised portion 12, forming an integrated structure with the gasket body 1. This eliminates the need for additional connectors and reduces the number of components. During the rotation of the transmission rod 4, when an axial force is generated, the bent or curved raised portion 12 exhibits a certain degree of elastic recovery, absorbing some of the axial force through slight deformation. This allows for more stable contact between the contact portion 11 and the bracket 3, further improving the effectiveness of limiting axial movement while preventing surface damage to the contact portion 11 or the bracket 3 due to excessive rigidity. This ensures the stability of the gasket's overall structure.

[0037] As an optional embodiment that can make the force between the washer and the nut 5 more uniform, refer to Figure 5 、 6 As shown in Figures 9 and 9, the gasket body 1 is also coaxially connected to a partition 2, and the partition 2 is provided with a protrusion 21 at the position of the through hole of the gasket body 1, and the protrusion 21 is passed through the through hole of the gasket body 1; the partition 2 is located on the other side of the gasket body 1 corresponding to the contact portion 11, and an axial through hole is provided on the protrusion 21.

[0038] The through-hole in the gasket body 1 and the axial through-hole in the protrusion 21 on the partition 2 are both provided for the transmission rod 4 to pass through, allowing the gasket to be completely sleeved on the transmission rod 4. The partition 2 is located on the side of the gasket body 1 facing away from the contact portion 11 (i.e., the side facing the nut 5), making contact with the nut 5. The partition 2 increases the contact area between the gasket body 1 and the nut 5, alleviating localized deformation of the nut 5 due to excessive pressure, and ensuring uniform pressure transfer from the nut 5 to the gasket body 1. The protrusion 21 on the partition 2, which passes through the through-hole in the gasket body 1, serves to position the gasket body 1.

[0039] For optional solutions, refer to Figure 5 、 6 As shown, the end of the protrusion 21 is located between the end surface of the gasket body 1 corresponding to the contact portion 11 and the plane where the end surface of the contact portion 11 is located.

[0040] The spacer 2 contacts the nut 5, and the contact portion 11 contacts the bracket 3. The end of the protrusion 21 is positioned between the end surface of the contact portion 11 of the gasket body 1 and the plane where the end surface of the contact portion 11 is located, that is, the end of the protrusion 21 does not exceed the end surface of the contact portion 11, nor is it lower than the end surface of the gasket body 1 where the contact portion 11 is located.

[0041] When the nut 5 is tightened, the contact portion 11 first contacts the bracket 3 to form a main limit, and the end of the protrusion 21 can abut against the surface of the bracket 3 to form a positioning, which can prevent the nut 5 from being excessively squeezed and affecting the rotation of the transmission rod 4. At the same time, the protrusion 21 can reduce the contact area with the surface of the bracket 3, mainly through the contact portion 11 to limit the axial movement.

[0042] Example 2

[0043] Example 1 mainly introduces a specific structure of a gasket and its various implementation methods. The above various gasket implementation methods can also be applied to the transmission mechanism to form the following technical solutions:

[0044] Reference Figure 3 、 4 As shown, a transmission mechanism includes a bracket 3, a transmission rod 4 rotatably connected to the bracket 3, and a nut 5 threadedly connected to the end of the transmission rod 4. The transmission rod 4 is installed on the bracket 3 through the nut 5. A gasket as in any of the above-mentioned embodiments is provided between the nut 5 and the bracket 3, and the contact portion 11 is used to contact the surface of the bracket 3 to limit the axial movement of the transmission rod 4 on the bracket 3.

[0045] The transmission rod 4 is mounted on the bracket 3 via the nut 5. Its rotatable connection with the bracket 3 can be achieved through components such as the shaft sleeve 6. The shaft sleeve 6 is fixed to the bracket 3, and the transmission rod 4 is inserted into the shaft sleeve 6 and can rotate relative to the shaft sleeve 6. The nut 5 is threadedly connected to the end of the transmission rod 4, axially limiting the transmission rod 4 on the bracket 3. The gasket body 1 is located between the nut 5 and the bracket 3, and its contact portion 11 contacts the surface of the bracket 3. During the rotation of the transmission rod 4, since the nut 5 and the bracket 3 are supported by the contact portion 11 of the gasket body 1, the axial movement of the transmission rod 4 is limited by the contact portion 11, and the gap between the gasket body 1 and the bracket 3 (formed by the protrusion of the contact portion 11) avoids excessive compression between the nut 5 and the bracket 3, ensuring that the transmission rod 4 can rotate flexibly and improving the operational stability of the transmission mechanism.

[0046] In an optional specific structure, a sleeve 6 is provided on the transmission rod 4, and the transmission rod 4 is rotatably connected to the bracket 3 through the sleeve 6. After the sleeve 6 passes through the bracket 3 toward the nut 5, at least a portion of it protrudes from the surface of the bracket 3 to allow the nut 5 to maintain a gap with the surface of the bracket 3; when the nut 5 is installed in place, the contact portion 11 contacts the surface of the bracket 3.

[0047] The sleeve 6 is inserted into the mounting hole of the bracket 3, and the transmission rod 4 is inserted into the sleeve 6 and can rotate relative to the sleeve 6. The sleeve 6 protrudes from the surface of the bracket 3 after passing through the bracket 3 at one end facing the nut 5. The length of the protruding portion determines the minimum gap between the nut 5 and the surface of the bracket 3. The gasket body 1 is sleeved on the transmission rod 4 and is located between the nut 5 and the bracket 3. When the nut 5 is tightened into place at the end of the transmission rod 4, the protruding portion of the sleeve 6 ensures that the nut 5 does not directly contact the surface of the bracket 3, while the contact portion 11 of the gasket body 1 contacts the surface of the bracket 3. At this time, the contact portion 11 forms an axial limit for the transmission rod 4, limiting its movement, and the protruding portion of the sleeve 6 ensures a gap to avoid excessive compression. The combination of the two allows the transmission rod 4 to rotate stably without causing obvious axial movement, thereby improving the reliability of the transmission mechanism.

[0048] Example 3

[0049] Reference Figure 3 、 4 As shown, a transmission mechanism includes a bracket 3, a transmission rod 4 rotatably connected to the bracket 3, and a nut 5 threadedly connected to the end of the transmission rod 4. The transmission rod 4 is installed on the bracket 3 through the nut 5, and a gasket with a partition 2 in the above-mentioned embodiment 1 is provided between the nut 5 and the bracket 3, and the contact portion 11 is used to contact the surface of the bracket 3 to limit the axial movement of the transmission rod 4 on the bracket 3; a shaft sleeve 6 is provided on the transmission rod 4, and the transmission rod 4 is rotatably connected to the bracket 3 through the shaft sleeve 6, and after the shaft sleeve 6 passes through the bracket 3, at least a part of the shaft sleeve 6 protrudes from the surface of the bracket 3 to maintain a gap between the nut 5 and the surface of the bracket 3; when the nut 5 is installed in place, the contact portion 11 contacts the surface of the bracket 3; and the protrusion 21 of the partition 2 abuts against the end of the shaft sleeve 6.

[0050] The shaft sleeve 6 is inserted into the mounting hole of the bracket 3, and the transmission rod 4 is inserted through the shaft sleeve 6 to achieve a rotational connection. The shaft sleeve 6 protrudes from the surface of the bracket 3 to form a gap. The contact portion 11 of the gasket body 1 contacts the surface of the bracket 3, while the protrusion 21 of the partition 2 abuts the end of the shaft sleeve 6, which can improve the protection of the gasket body 1 and allow the force of the nut 5 to be evenly transmitted to the gasket body 1 through the partition 2. The contact portion 11 limits the movement of the transmission rod 4 toward the bracket 3, and the protrusion of the shaft sleeve 6 ensures the gap between the nut 5 and the bracket 3, avoiding excessive compression, and improving the axial stability of the transmission rod 4 during rotation.

[0051] Example 4

[0052] Reference Figure 1 、 2As shown in Figures 3 and 4, a seat lock bolt includes a driver 7, a transmission mechanism connected to the driver 7, a slide 8 cooperated with the transmission mechanism, and a lock buckle 9 installed on the slide 8. The driver 7 drives the slide 8 to move through the transmission mechanism. The transmission mechanism adopts the transmission mechanism as in Example 2. The slide 8 is connected to the transmission rod 4. The driver 7 cooperates with the transmission rod 4 to drive the transmission rod 4 to rotate; the transmission rod 4 drives the slide 8 to move axially along the transmission rod 4.

[0053] A driver 7 (e.g., a motor) is connected to a transmission rod 4 (e.g., a screw), driving the transmission rod 4 in forward and reverse rotation. Slide 8 is threadedly engaged with the transmission rod 4 or connected via some other axial transmission structure. When the transmission rod 4 rotates, the slide 8 moves axially, driven by the transmission rod 4. This in turn drives the latch 9 mounted on the slide 8, adjusting the seat angle. Within the transmission mechanism, the contact portion 11 of the gasket body 1 limits axial movement of the transmission rod 4, ensuring a stable axial position during rotation. This allows for more precise axial movement of the slide 8, minimizing axial movement and reducing unwanted noise.

[0054] Example 5

[0055] Reference Figure 1 、 2 As shown in Figures 3 and 4, a seat lock bolt includes a driver 7, a transmission mechanism connected to the driver 7, a slide 8 coordinated with the transmission mechanism, and a lock buckle 9 installed on the slide 8. The driver 7 drives the slide 8 to move through the transmission mechanism. The transmission mechanism adopts the transmission mechanism as in Example 3. The slide 8 is connected to the transmission rod 4. The driver 7 cooperates with the transmission rod 4 to drive the transmission rod 4 to rotate; the transmission rod 4 drives the slide 8 to move axially along the transmission rod 4.

[0056] The difference from Example 4 is that Example 5 further includes a spacer 2, which can further optimize the force between the nut 5 and the gasket body 1. The protrusion 21 on the spacer 2 can position the gasket body 1. It also serves to limit the maximum compression degree of the nut 5, further protecting the gasket body 1.

[0057] It should also be noted that in the aforementioned embodiments 2, 3, 4, and 5, the gasket body 1 can rotate with the transmission rod 4 depending on the usage, using the contact portion 11 to reduce the contact surface and overcome the movement caused by the gap. Similarly, in the embodiment with the partition 2, the partition 2 can also rotate with the transmission rod 4. When the transmission rod 4 rotates, the gasket body 1, partition 2, and nut 5 can all rotate. In the embodiment with the sleeve 6, the sleeve 6 can also rotate. Of course, if the usage allows, the gasket body 1, partition 2, and sleeve 6 can also be stationary.

[0058] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A gasket comprising a gasket body having an axial through hole, characterized in that: A surface of the gasket body used for contacting an object is provided with a plurality of contact portions protruding from the gasket body.

2. The gasket according to claim 1, characterized in that The contact portion is in a spherical segment shape or a bowl shape.

3. The gasket according to claim 1, wherein A plurality of protrusions are provided on one side of the gasket body corresponding to the contact portion, and the contact portion is located on the protrusions.

4. The gasket according to claim 3, characterized in that The protrusion is formed by bending or curving the gasket body.

5. The gasket according to any one of claims 1 to 4, characterized in that: The gasket body is also coaxially connected to a partition, which is provided with a protrusion at the position corresponding to the through hole of the gasket, and the protrusion is penetrated into the through hole of the gasket; the partition is located on the other side of the gasket body corresponding to the contact portion, and the protrusion is provided with an axial through hole.

6. The gasket according to claim 5, characterized in that The end of the protrusion is located between the end surface of the gasket body corresponding to the contact portion and the plane where the end surface of the contact portion is located.

7. A transmission mechanism comprising a bracket, a transmission rod rotatably connected to the bracket, and a nut threadedly connected to the end of the transmission rod, wherein the transmission rod is mounted on the bracket via the nut, and characterized in that: A gasket as claimed in any one of claims 1 to 6 is provided between the nut and the bracket, and the contact portion is used to contact the surface of the bracket to limit axial movement of the transmission rod on the bracket.

8. The transmission mechanism according to claim 7, characterized in that: The transmission rod is provided with a shaft sleeve, and the transmission rod is rotatably connected to the bracket through the shaft sleeve. After the shaft sleeve passes through the bracket toward the nut, at least a portion of it protrudes from the surface of the bracket to allow the nut to maintain a gap with the bracket surface; when the nut is installed in place, the contact portion contacts the bracket surface.

9. A transmission mechanism comprising a bracket, a transmission rod rotatably connected to the bracket, and a nut threadedly connected to the end of the transmission rod, wherein the transmission rod is mounted on the bracket via the nut, and characterized in that: A gasket as claimed in claim 6 is arranged between the nut and the bracket, and the contact portion is used to contact the surface of the bracket to limit axial movement of the transmission rod on the bracket; a shaft sleeve is provided on the transmission rod, and the transmission rod is rotatably connected to the bracket through the shaft sleeve, and after the shaft sleeve passes through the bracket, at least a part of it protrudes from the surface of the bracket to maintain a gap between the nut and the surface of the bracket; when the nut is installed in place, the contact portion contacts the surface of the bracket; and the protrusion of the partition abuts against the end of the shaft sleeve.

10. A seat lock bolt, comprising a driver, a transmission mechanism connected to the driver, a slide seat matched with the transmission mechanism, and a lock catch mounted on the slide seat, wherein the driver drives the slide seat to move through the transmission mechanism, and is characterized in that: The transmission mechanism adopts the transmission mechanism as described in claim 7 or 8, the slide is connected to the transmission rod, and the driver cooperates with the transmission rod to drive the transmission rod to rotate; the transmission rod drives the slide to move axially along the transmission rod.

11. A seat lock bolt, comprising a driver, a transmission mechanism connected to the driver, a slide seat matched with the transmission mechanism, and a lock catch mounted on the slide seat, wherein the driver drives the slide seat to move through the transmission mechanism, and is characterized in that: The transmission mechanism adopts the transmission mechanism as claimed in claim 9, the slide is connected to the transmission rod, the driver cooperates with the transmission rod to drive the transmission rod to rotate; the transmission rod drives the slide to move axially along the transmission rod.

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