Locking assembly of a turnover half ring

Abstract

The utility model belongs to the technical field of hosiery machine, especially relates to a locking assembly of turnover half ring, and it solves the problem that the locking force of turnover half ring cannot be adjusted. The locking assembly of turnover half ring, including the hosiery base and the hinge turnover half ring of it, the free end of turnover half ring is equipped with the lock catch, be equipped with the lock hole on the lock catch, be equipped with the lock body on the hosiery base, be equipped with the passive telescopic lock bolt of the elastic reset along X axle direction on the lock body, when turnover half ring and fixed half ring are opposite, the passive telescopic lock bolt can embed in the lock hole, be equipped with the guide surface for guiding the relative motion on the lock hole and passive telescopic lock bolt, be equipped with the locking force adjusting mechanism between the lock body and hosiery base. Realized the effect that the locking force of turnover half ring can be adjusted.

Description

Technical Field

[0001] This utility model belongs to the field of sock knitting technology, and specifically relates to a locking component for a flipping half-ring. Background Technology

[0002] A sock knitting machine is a machine used to produce socks. In the production process, the sock tube is first knitted, and then a transfer mechanism moves it to a sewing mechanism for sewing. In the sewing mechanism, the sock tube is transferred to a fixed half-ring and a rotating half-ring. The rotating half-ring is then rotated to overlap with the fixed half-ring to close the opening of the sock tube. The corresponding sewing machine then performs the sewing operation.

[0003] In the prior art, the flipping half ring has a state of unfolding to be opposite to the fixed half ring, and a state of rotating to be superimposed with the fixed half ring. In the opposite state, the rotation limit of the flipping half ring and the seam head base is generally achieved by a corresponding limiting locking mechanism.

[0004] However, most limit locking mechanisms switch the limit state through an active structure, which increases the driving force and structural cost. Moreover, most limit locking mechanisms generally cannot adjust the locking force, and cannot reduce the driving force required to release the limit while ensuring locking stability, which may lead to a waste of driving force. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a locking assembly for a flipping half-ring.

[0006] To achieve the innovative objectives of this utility model, the following technical solutions can be used: A locking assembly for a flip-up half-ring includes a stocking base and a flip-up half-ring hinged thereto. The free end of the flip-up half-ring is provided with a buckle, and the buckle has a lock hole. The stocking base is provided with a lock body, and the lock body is provided with a passive telescopic latch that can elastically reset along the X-axis. When the flip-up half-ring is opposite to the fixed half-ring, the passive telescopic latch can be inserted into the lock hole. The lock hole and / or the passive telescopic latch are provided with guide surfaces for guiding their relative movement. A locking force adjustment mechanism is provided between the lock body and the stocking base.

[0007] The locking assembly of this invention is located between the stocking base and the flipping half-ring. The two ends of the flipping half-ring are rotatably connected to the stocking base, and the main body can rotate along the connection position. The middle of the flipping half-ring body is a free end, on which a buckle is provided. A lock body is provided at the corresponding position on the stocking base. When the flipping half-ring is unfolded, the passive telescopic latch on the lock body can cooperate with the lock hole on the buckle to limit the rotation of the flipping half-ring. Guide surfaces are provided on the lock hole and the latch to help the front end of the latch slide into or out of the lock hole. Under the action of elastic force, the latch tends to extend forward, so that it can be kept in the lock hole. However, under the action of a certain amount of external force, the latch can overcome the elastic force and slide out of the lock hole along the guide surface. Moreover, the latch is passively telescopic, which does not require an additional driving structure, reducing driving and structural costs. In order to adjust the magnitude of the elastic force, this assembly is also specially provided with a locking force adjustment mechanism, which can adjust the magnitude of the external force required to make the latch leave the lock hole, ensuring that the locking strength is within a suitable range. Furthermore, the lock body can be configured in one set on one side of the latch, or in two sets, located on both sides of the latch. For clarification, the directional positioning and the rotation axis of the flipping semi-ring are defined as the X-axis, and the axis perpendicular to the stocking base is defined as the Z-axis.

[0008] In the aforementioned locking assembly of the flip half-ring, the latch is disposed on the end of the flip half-ring facing the sock base and extends along the Z-axis direction. The end of the sock base facing the flip half-ring is provided with a latch groove that can engage with the latch. The lock body passes through the lock body mounting hole of the sock base, and at least a portion of the passive telescopic latch is located in the latch groove.

[0009] The buckle extends upward from the middle of the top surface of the flipped half-ring. A buckle groove is provided at the corresponding position on the sewing base. The front end of the latch extends into the latch groove and tends to maintain this state. When the flipped half-ring is flattened, the buckle extends into the latch groove. Under the guidance of the guide surface, the latch is pressed inward until the latch and the lock hole are aligned. The front end of the latch enters the lock hole to achieve the rotation limit of the flipped half-ring.

[0010] In the aforementioned locking assembly of the flipping semi-ring, the locking force adjustment mechanism is a lock body adjustment structure used to adjust the installation position of the lock body in the X-axis direction.

[0011] As the first option, the locking force adjustment mechanism can be achieved by directly adjusting the position of the lock body through the lock body adjustment structure. That is, by adjusting the position of the entire lock body in the X-axis direction, the extension length of the bolt can be adjusted. Of course, even the maximum extension length should be able to ensure the cooperation of the guide surface. Different extension lengths mean that the elastic force needs to be overcome to make the bolt retract at different strokes, thereby achieving the effect of adjusting the magnitude of the locking force.

[0012] In the aforementioned flip-half-ring locking assembly, the lock body is cylindrical and screwed into the lock body mounting hole. The inner end of the lock body mounting hole is connected to the latch groove, and the outer end is fitted through the outer wall of the sewing base. An adjustable force application part is provided on the end of the lock body away from the passive telescopic lock tongue.

[0013] The lock body itself is cylindrical and is threaded into the lock body mounting hole. The front end of the lock body is provided with a lock tongue that has an elastic elongation tendency. This elastic tendency can be achieved by a spring or the like. One end of the spring abuts against the lock tongue, and the other end abuts against the bottom of the cylinder of the lock body. The rear end of the lock body is provided with an adjustment force application part for rotating the lock body.

[0014] In the aforementioned locking assembly of the flipping semi-ring, the locking force adjustment mechanism is a bolt spring force adjustment structure, which is connected to the passive telescopic bolt and is used to adjust its elastic restoring force.

[0015] As a second option, the locking force adjustment mechanism also controls the elastic force applied to the passive telescopic bolt through the bolt elasticity adjustment structure. By directly adjusting the magnitude of this elastic force, the locking force can be controlled.

[0016] In the aforementioned flip-half-ring locking assembly, the latch spring force adjustment structure includes an adjustment block disposed at the end of the lock body away from the passive telescopic latch. The latch is connected to the adjustment block through an elastic element, and the adjustment block is connected to the lock body through a threaded structure. An adjustment force application part is provided at the outer end of the adjustment block.

[0017] The adjusting block, elastic element, and passive telescopic bolt are connected end to end. Of course, there is a limiting structure between the bolt and the lock body to limit the maximum extension length. The lock body is fixed in the lock body mounting hole. By rotating the adjusting block, the installation position in the lock body can be controlled, thereby achieving the effect of adjusting the compression degree of the elastic element. Different compression degrees of the elastic element result in different elastic forces.

[0018] In the aforementioned locking assembly of the flip-half ring, the latch spring force adjustment structure includes a lock shell disposed in the lock body mounting hole, an elastic element provided between the lock shell and the passive telescopic latch, an axial anti-disengagement structure provided between the passive telescopic latch and the inner end of the lock body mounting hole, the lock shell and the sock base being connected by a threaded structure, and an adjustment force application part provided at the outer end of the lock shell.

[0019] The lock case, the elastic element, and the lock tongue are connected end to end in sequence. This connection can be abutting. The axial anti-disengagement structure confines the lock tongue between the inner end of the lock body mounting hole and the lock case. By adjusting the position of the lock case in the X-axis direction, the degree of compression of the elastic element can be controlled. Different degrees of compression result in different elastic forces.

[0020] In the aforementioned locking assembly of the flip-half ring, the latch spring force adjustment structure includes a tubular lock shell disposed within the lock body mounting hole. An elastic element is disposed within the lock shell. One end of the elastic element abuts against the passive telescopic latch, and the other end abuts against a spring pressure member. An axial anti-disengagement structure is provided between the passive telescopic latch and the inner end of the lock body mounting hole. A first axial guide structure is provided between the passive telescopic latch and one end of the lock shell. A second axial guide structure is provided between the spring pressure member and the other end of the lock shell. The spring pressure member is connected to the sock base via a threaded structure, and an adjustment force application part is provided at the outer end of the spring pressure member.

[0021] The elastic element is set inside the lock housing. The lock housing has a latch and a spring pressure member at both ends. The spring pressure member is threaded into the lock housing and its position can be adjusted by rotation. The first axial guide structure ensures that the latch can extend and retract at one end of the lock housing, and the second axial guide structure ensures that the spring pressure member can extend and retract at the other end of the lock housing to adjust its position. The degree of compression of the elastic element can be adjusted by rotating the spring pressure member, thereby adjusting the locking force.

[0022] As an optimization, the force-applying part includes either a force-applying tool hole or an adjustment knob, and the force-applying tool hole includes a cross hole, a flat hole, an internal hexagonal hole, etc.

[0023] In the aforementioned locking assembly of the flipping semi-ring, the axial anti-disengagement structure includes an annular retaining ring disposed on the inner end of the passive telescopic lock tongue, and an anti-disengagement retaining ring step that can cooperate with the annular retaining ring is provided between the lock body mounting hole and the lock slot.

[0024] The annular retaining ring protrudes radially outward at the inner end of the lock tongue, and the anti-disengagement retaining ring step protrudes radially inward within the lock body mounting hole. The outer diameter of the annular retaining ring is larger than the inner diameter of the anti-disengagement retaining ring step, and the axial end faces of the two are in contact to achieve limiting.

[0025] In the aforementioned locking assembly of the flip-half ring, the first axial guide structure includes an extension post disposed at the inner end of the passive telescopic bolt, the extension post being disposed within one end of the cylindrical lock housing; the second axial guide structure includes an annular guide groove disposed at the inner end of the spring pressure member, the other end of the lock housing being disposed within the annular guide groove.

[0026] An extension post is provided at the inner end of the latch. The outer diameter of the extension post is slightly smaller than the inner diameter of the lock case. The outer diameter of the latch is larger than the inner diameter of the lock case. A circumferentially distributed and axially extended annular guide groove is provided on the inner end face of the spring pressure member. The inner and outer diameters of the groove are adapted to the inner and outer diameters of the lock case to ensure the extension and retraction of the spring pressure member.

[0027] In the aforementioned locking assembly of the flip-half ring, the latch includes a connecting section and a large head integrally connected to the upper side of the connecting section. The lower side of the connecting section is fixedly connected to the top end face of the flip-half ring. The width of the large head is greater than that of the connecting section. The lock hole is located between the large head, the connecting section, and the flip-half ring, and is in the shape of a groove or a through hole. The latch includes a cylindrical body, and the front end of the cylindrical body can be inserted into the lock hole. The large head extends at an angle, and the direction of extension passes through the rotation axis of the flipped semi-ring. The guide surface includes an inclined plane or inclined slope disposed between the large head and the connecting section and on the side of the large head away from the connecting section, and / or the front end of the cylindrical body includes a hemispherical head, and the guide surface includes the spherical surface of the hemispherical head.

[0028] In the Z-axis direction, the latch generally has a structure that is wider at the top and narrower at the bottom, with a concave center. This concave position is where the keyhole is located. The keyhole can be in the form of a groove, with the front end of the latch resting against the bottom of the groove, i.e., the connecting section. Alternatively, the keyhole can be through-hole, with the front end of the latch extending into the keyhole. Of course, the maximum extension length of the latch is limited. The preferred shape of the latch is a cylindrical body with a hemispherical head at the front. The arc surface of this hemispherical head can serve as an effective guide surface in all directions. The guide surface on the latch can be located between the large head and the connecting section to guide the latch as it leaves the keyhole. It can also be located on the side of the large head away from the connecting section to guide the latch as it slides onto the large head into the keyhole. Furthermore, the large head is a straight line with an inclined orientation, and its cross-section can be similar to a rhombus. Its extension direction intersects the rotation axis of the flipping semi-ring. During the flipping process, the sliding path of the latch relative to the large head is perpendicular to the extension direction of the large head, ensuring the guiding effect of the guide surface.

[0029] Compared with the prior art, the locking assembly of this utility model is set between the sewing base and the flipping half ring. A buckle is provided on the free end of the flipping half ring, and a lock body is provided at the corresponding position on the sewing base. When the flipping half ring is unfolded, the passive telescopic latch on the lock body can cooperate with the lock hole on the buckle to limit the rotation of the flipping half ring. Guide surfaces are provided on the lock hole and the latch to help the front end of the latch slide into or out of the lock hole. Under the action of elastic force, the latch tends to extend forward so that it can be kept in the lock hole. However, under the action of a certain amount of external force, the latch can overcome the elastic force and slide out of the lock hole along the guide surface. In order to adjust the magnitude of the elastic force, this assembly is also specially provided with a locking force adjustment mechanism, which can adjust the magnitude of the external force required to make the latch leave the lock hole, ensuring that the locking strength is within a suitable range. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the locking assembly of this utility model installed on the sock base and the flipping half ring; Figure 2 This is a cross-sectional schematic diagram of the locking tongue and locking force adjustment mechanism of Embodiment 1 of this utility model installed on the sock base (the buckle is not shown). Figure 3 This is a schematic diagram of the structure of the latch provided by this utility model; Figure 4 This is a schematic diagram of the locking latch and lock body provided by this utility model; Figure 5 This is a cross-sectional schematic diagram of the locking tongue and locking force adjustment mechanism of Embodiment 2 of this utility model installed on the sock base (the buckle is not shown). Figure 6 This is a cross-sectional schematic diagram of the locking tongue and locking force adjustment mechanism of Embodiment 3 of this utility model installed on the sock base (the buckle is not shown). Figure 7 This is a cross-sectional schematic diagram of the locking tongue and locking force adjustment mechanism of Embodiment 4 of this utility model installed on the sewing sock base (the buckle is not shown).

[0031] In the diagram, 1 is the sewing base, 2 is the flipping semi-ring, 3 is the buckle, 4 is the lock hole, 5 is the lock body, 6 is the passive telescopic bolt, 7 is the guide surface, 8 is the locking force adjustment mechanism, 9 is the buckle groove, 10 is the lock body mounting hole, 11 is the lock body positioning structure, 12 is the force adjustment part, 13 is the bolt elasticity adjustment structure, 14 is the adjustment block, 15 is the elastic element, 16 is the lock shell, 17 is the axial anti-slip structure, 18 is the spring pressure element, 19 is the first axial guide structure, 20 is the second axial guide structure, 21 is the annular retaining ring, 22 is the anti-slip retaining ring step, 23 is the force application tool hole, 24 is the extension post, 25 is the annular guide groove, 26 is the connecting section, 27 is the large head, 28 is the cylindrical body, 29 is the hemispherical head, and 30 is the anti-collision plane. Detailed Implementation

[0032] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0033] Example 1 Specific implementation examples Figures 1-4 As shown, the locking assembly of this flip-up half-ring includes a sock base 1 and a flip-up half-ring 2 hinged thereto. The free end of the flip-up half-ring 2 is provided with a buckle 3, and the buckle 3 is provided with a lock hole 4. The sock base 1 is provided with a lock body 5, and the lock body 5 is provided with a passive telescopic latch 6 that can elastically reset along the X-axis. When the flip-up half-ring 2 is opposite to the fixed half-ring, the passive telescopic latch 6 can be inserted into the lock hole 4. The lock hole 4 and the passive telescopic latch 6 are provided with guide surfaces 7 for guiding their relative movement. A locking force adjustment mechanism 8 is provided between the lock body 5 and the sock base 1.

[0034] Specifically, this locking assembly is positioned between the stocking base 1 and the flipping half-ring 2. The two ends of the flipping half-ring 2 are rotatably connected to the stocking base 1, and the main body can rotate along the connection point. The middle of the main body of the flipping half-ring 2 is a free end, on which a buckle 3 is provided. A lock body 5 is provided at the corresponding position on the stocking base 1. When the flipping half-ring 2 is unfolded, the passive telescopic latch 6 on the lock body 5 can cooperate with the lock hole 4 on the buckle 3 to limit the rotation of the flipping half-ring 2. In this embodiment, only one set of buckles 3 is provided. Guide surfaces 7 are provided on the lock hole 4 and the latch 6, which help the front end of the latch 6 slide into or out of the lock hole 4. Under the action of elastic force, the latch 6 has a tendency to extend forward, allowing it to remain within the lock hole 4. However, under a certain amount of external force, the latch 6 can overcome the elastic force and slide out of the lock hole 4 along the guide surface 7. To adjust the magnitude of this elastic force, this assembly also has a locking force adjustment mechanism 8, which can adjust the amount of external force required to make the latch 6 leave the lock hole 4, ensuring that the locking strength is within a suitable range.

[0035] like Figure 1 , Figure 2 , Figure 4 As shown, the latch 3 is located on the end of the flip-up semi-ring 2 facing the stocking base 1 and extends along the Z-axis. The end of the stocking base 1 facing the flip-up semi-ring 2 is provided with a latch groove 9 that can cooperate with the latch 3. The lock body 5 passes through the lock body mounting hole 10 of the stocking base 1, and at least part of the passive telescopic latch 6 is located in the latch groove 9. The locking force adjustment mechanism 8 is a lock body adjustment structure 11, used to adjust the installation position of the lock body 5 in the X-axis direction. The lock body 5 is cylindrical and screwed into the lock body mounting hole 10. The inner end of the lock body mounting hole 10 communicates with the latch groove 9, and the outer end passes through the outer wall of the stocking base 1. An adjusting force application part 12 is provided on the end of the lock body 5 away from the passive telescopic latch 6.

[0036] Specifically, the latch 3 extends upward from the middle of the top surface of the flipping half-ring 2. A corresponding latch groove 9 is provided on the sock base 1. The front end of the latch tongue 6 extends into the latch groove 9 and tends to maintain this state. When the flipping half-ring 2 is flattened, the latch 3 extends into the latch groove 9. Under the guidance of the guide surface 7, the latch tongue 6 is pressed inward until it is aligned with the lock hole 4. The front end of the latch tongue 6 enters the lock hole 4, thus limiting the rotation of the flipping half-ring 2. The locking force adjustment mechanism 8 can be directly adjusted by adjusting the position of the lock body 5 through the lock body adjustment structure 11. That is, by adjusting the position of the entire lock body 5 in the X-axis direction, the extension length of the latch tongue 6 can be adjusted. Of course, even the maximum extension length should be able to ensure the cooperation of the guide surface 7. Different extension lengths mean that the elastic force needs to be overcome to make the extension stroke of the latch tongue 6 different, thereby achieving the effect of adjusting the locking force. The lock body 5 itself is cylindrical and is threaded into the lock body mounting hole 10. The front end of the lock body 5 is provided with a latch 6 that has an elastic elongation tendency. This elastic tendency can be achieved by a spring or the like. One end of the spring abuts against the latch 6 and the other end abuts against the bottom of the cylinder of the lock body 5. The rear end of the lock body 5 is provided with an adjusting force application part 12 for rotating the lock body 5. The adjusting force application part 12 includes a force application tool hole 23, which can be an internal hexagonal hole.

[0037] like Figure 1 , Figure 3 As shown, the latch 3 includes a triangular connecting segment 26 and a large head 27 integrally connected to the upper side of the connecting segment 26. The lower side of the connecting segment 26 is fixedly connected to the top end face of the flip half ring 2. The width of the large head 27 is greater than that of the connecting segment 26. The lock hole 4 is located between the large head 27, the connecting segment 26 and the flip half ring 2, and is in the shape of a groove. The latch 6 includes a cylindrical body 28, the front end of which is a hemispherical head 29, which can be inserted into the lock hole 4. The large head 27 extends obliquely, and the extension direction passes through the rotation axis of the flip half ring 2. The top of the large head 27 is provided with an anti-collision plane 30 parallel to the XY axis plane. The guide surface 7 includes an oblique plane disposed between the large head 27 and the connecting segment 26 and on the side of the large head 27 away from the connecting segment 26, and a spherical surface of the hemispherical head 29.

[0038] Specifically, in the Z-axis direction, the latch 3 has a generally concave structure, wider at the top and narrower at the bottom, which is the location of the lock hole 4. The lock hole 4 is in the form of a groove, and the front end of the latch 6 can rest against the bottom of the groove, i.e., the connecting section 26. The latch 6 has a cylindrical body with a hemispherical head 29 at the front end. The arc surface of the hemispherical head 29 can serve as an effective guide surface in all directions. The guide surface 7 on the latch 6 can be set between the large head 27 and the connecting section 26 to guide the latch 6 away from the lock hole 4. It can also be set on the side of the large head 27 away from the connecting section 26 to guide the lock hole 4 to slide onto the large head 27 and enter the lock hole 4. In addition, the large head 27 is a straight line with an inclined setting, and its cross-section can be similar to a rhombus shape. Its extension direction intersects the rotation axis of the flipping half-ring 2. During the flipping process, the sliding path of the latch 6 relative to the large head 27 is perpendicular to the extension direction of the large head 27, ensuring the guiding effect of the guide surface 7.

[0039] Specific working principle: During the unfolding of the flipping half-ring 2, when it is about to rotate to be opposite the fixed half-ring, the hemispherical head 29 slides along the guide surface 7 on the top side of the large head 27, and the locking tongue 6 is compressed in until it slides to the widest position of the large head 27. The locking tongue 6 slides into the lock hole 4 below the large head 27 along the inner guide surface 7, realizing the locking limit of the flipping. When it is necessary to flip in the opposite direction, a sufficient external force can be applied to the flipping half-ring 2. At this time, the locking tongue 6 is guided by the guide surface 7 on the lower side of the large head 27 and retracts against the elastic force. After passing the widest position of the large head 27, it slides down along the upper guide surface 7, and the limit is released.

[0040] When a greater locking force is needed, the corresponding tool hole 23 can be rotated to further screw the lock body 5 into the lock body mounting hole 10. This increases the extension length of the front end of the bolt 6 and the distance between the front end of the bolt 6 and the widest part of the large head 27, thus enhancing the locking force. To reduce the locking force, the lock body 5 is rotated in the opposite direction.

[0041] Example 2 The working principle of this embodiment is basically the same as that of embodiment 1, except that the locking force adjustment mechanism 8 is different.

[0042] Specific implementation examples Figure 5 As shown, the locking force adjustment mechanism 8 is a bolt spring force adjustment structure 13, which is connected to the passive telescopic bolt 6 and is used to adjust its elastic restoring force. The bolt spring force adjustment structure 13 includes an adjustment block 14 disposed at the end of the lock body 5 away from the passive telescopic bolt 6. The bolt 6 is connected to the adjustment block 14 through an elastic element 15. The adjustment block 14 is connected to the lock body 5 through a threaded structure. An adjustment force application part 12 is provided at the outer end of the adjustment block 14.

[0043] Specifically, the locking force adjustment mechanism 8 also controls the elastic force applied to the passive telescopic bolt 6 through the bolt spring force adjustment structure 13. By directly adjusting the magnitude of this elastic force, the locking force can be controlled. The adjusting block 14, the elastic element 15, and the passive telescopic bolt are connected end to end. Of course, a limiting structure is provided between the bolt 6 and the lock body 5 to limit the maximum extension length. The lock body 5 is fixed in the lock body mounting hole 10. By rotating the adjusting block 14, the installation position in the lock body 5 can be controlled, thereby adjusting the degree of compression of the elastic element 15. Different degrees of compression of the elastic element 15 result in different elastic forces.

[0044] Furthermore, an axial anti-disengagement structure 17 is provided between the bolt 6 and the inner end of the lock body mounting hole 10. The axial anti-disengagement structure 17 includes an annular retaining ring 21 disposed on the inner end of the passive telescopic bolt 6, and an anti-disengagement retaining ring step 22 that can cooperate with the annular retaining ring 21 is provided between the lock body mounting hole 10 and the lock buckle groove 9. The annular retaining ring 21 protrudes radially outward at the inner end of the bolt 6, and the anti-disengagement retaining ring step 22 protrudes radially inward within the lock body mounting hole 10. The outer diameter of the annular retaining ring 21 is larger than the inner diameter of the anti-disengagement retaining ring step 22, and the axial end faces of the two are in contact to achieve limiting.

[0045] Example 3 The working principle of this embodiment is basically the same as that of embodiment 2, except that the locking tongue elasticity adjustment structure 13 is different.

[0046] Specific implementation examples Figure 6 As shown, the latch spring force adjustment structure 13 includes a lock shell 16 disposed in the lock body mounting hole 10, an elastic element 15 is provided between the lock shell 16 and the passive telescopic latch 6, an axial anti-disengagement structure 17 is provided between the passive telescopic latch 6 and the inner end of the lock body mounting hole 10, the lock shell 16 is connected to the sock base 1 by a threaded structure, and an adjustment force application part 12 is provided at the outer end of the lock shell 16.

[0047] Specifically, the lock housing 16, the elastic element 15, and the lock tongue 6 are connected end to end in sequence. This connection can be abutting. The axial anti-disengagement structure 17 limits the lock tongue 6 to be located between the inner end of the lock body mounting hole 10 and the lock housing 16. By adjusting the position of the lock housing 16 in the X-axis direction, the compression degree of the elastic element 15 can be controlled. Different compression degrees result in different elastic forces.

[0048] Example 4 The working principle of this embodiment is basically the same as that of embodiment 2, except that the locking tongue elasticity adjustment structure 13 is different.

[0049] Specific implementation examples Figure 7As shown, the latch spring force adjustment structure 13 includes a tubular lock shell 16 disposed inside the lock body mounting hole 10. An elastic element 15 is disposed inside the lock shell 16. One end of the elastic element 15 abuts against the passive telescopic latch 6, and the other end abuts against the spring pressure member 18. An axial anti-disengagement structure 17 is disposed between the passive telescopic latch 6 and the inner end of the lock body mounting hole 10. A first axial guide structure 19 is disposed between the passive telescopic latch 6 and one end of the lock shell 16. A second axial guide structure 20 is disposed between the spring pressure member 18 and the other end of the lock shell 16. The spring pressure member 18 is connected to the sock base 1 by a threaded structure. An adjusting force application part 12 is disposed at the outer end of the spring pressure member 18. The first axial guide structure 19 includes an extension post 24 disposed at the inner end of the passive telescopic bolt 6, and the extension post 24 is disposed in one end of the cylindrical lock housing 16; the second axial guide structure 20 includes an annular guide groove 25 disposed at the inner end of the spring pressure member 18, and the other end of the lock housing 16 is disposed in the annular guide groove 25.

[0050] Specifically, the elastic element 15 is disposed within the lock housing 16. The lock housing 16 has a latch 6 and a spring compression member 18 at both ends. The spring compression member 18 is threaded into the lock housing 16 and its position can be adjusted by rotation. A first axial guide structure 19 ensures that the latch 6 can extend and retract at one end of the lock housing 16, and a second axial guide structure 20 ensures that the spring compression member 18 can extend and retract at the other end of the lock housing 16 to adjust its position. Rotating the spring compression member 18 adjusts the compression degree of the elastic element 15, thereby adjusting the locking force. An extension post 24 is disposed at the inner end of the latch 6. The outer diameter of the extension post 24 is slightly smaller than the inner diameter of the lock housing 16, while the outer diameter of the latch 6 is larger than the inner diameter of the lock housing 16. Circumferentially distributed and axially extending annular guide grooves 25 are disposed on the inner end face of the spring compression member 18. The inner and outer diameters of these grooves are adapted to the inner and outer diameters of the lock housing 16 to ensure the extension and retraction of the spring compression member 18.

[0051] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A locking assembly for a flipped half-ring, comprising a stocking base (1) and a flipped half-ring (2) hinged thereto, characterized in that, The free end of the flipping half ring (2) is provided with a buckle (3), the buckle (3) is provided with a lock hole (4), the sewing base (1) is provided with a lock body (5), the lock body (5) is provided with a passive telescopic lock tongue (6) that can elastically reset along the X-axis direction. When the flipping half ring (2) is opposite to the fixed half ring, the passive telescopic lock tongue (6) can be embedded in the lock hole (4). The lock hole (4) and / or the passive telescopic lock tongue (6) are provided with a guide surface (7) for guiding their relative movement. The lock body (5) and the sewing base (1) are provided with a locking force adjustment mechanism (8).

2. The locking assembly for the flipped semi-ring according to claim 1, characterized in that, The buckle (3) is located on the end of the flip half ring (2) facing the sock base (1) and extends along the Z-axis. The end of the sock base (1) facing the flip half ring (2) is provided with a buckle groove (9) that can cooperate with the buckle (3). The lock body (5) passes through the lock body mounting hole (10) of the sock base (1), and at least part of the passive telescopic lock tongue (6) is located in the buckle groove (9).

3. The locking assembly for the flipped semi-ring according to claim 2, characterized in that, The locking force adjustment mechanism (8) is a lock body adjustment structure (11) used to adjust the installation position of the lock body (5) in the X-axis direction.

4. The locking assembly for the flipped semi-ring according to claim 3, characterized in that, The lock body (5) is cylindrical and screwed into the lock body mounting hole (10). The inner end of the lock body mounting hole (10) is connected to the lock buckle groove (9), and the outer end is provided with the outer wall of the sewing base (1). An adjustment force application part (12) is provided on the end of the lock body (5) away from the passive telescopic lock tongue (6).

5. The locking assembly for the flipped semi-ring according to claim 2, characterized in that, The locking force adjustment mechanism (8) is a latch elasticity adjustment structure (13), which is connected to the passive telescopic latch (6) and is used to adjust its elastic restoring force.

6. The locking assembly for the flipped half-ring according to claim 5, characterized in that, The lock tongue elasticity adjustment structure (13) includes an adjustment block (14) located at the end of the lock body (5) away from the passive telescopic lock tongue (6). The lock tongue (6) is connected to the adjustment block (14) through an elastic element (15). The adjustment block (14) is connected to the lock body (5) through a threaded structure. An adjustment force application part (12) is provided at the outer end of the adjustment block (14).

7. The locking assembly for the flipped semi-ring according to claim 5, characterized in that, The lock tongue elasticity adjustment structure (13) includes a lock shell (16) disposed in the lock body mounting hole (10), an elastic element (15) is provided between the lock shell (16) and the passive telescopic lock tongue (6), an axial anti-disengagement structure (17) is provided between the passive telescopic lock tongue (6) and the inner end of the lock body mounting hole (10), the lock shell (16) is connected to the sewing base (1) by a threaded structure, and an adjustment force application part (12) is provided at the outer end of the lock shell (16).

8. The locking assembly for the flipped semi-ring according to claim 5, characterized in that, The lock tongue elasticity adjustment structure (13) includes a tubular lock shell (16) set in the lock body mounting hole (10), an elastic element (15) is provided in the lock shell (16), one end of the elastic element (15) abuts against the passive telescopic lock tongue (6), and the other end abuts against the spring pressure member (18). An axial anti-disengagement structure (17) is provided between the passive telescopic lock tongue (6) and the inner end of the lock body mounting hole (10), a first axial guide structure (19) is provided between the passive telescopic lock tongue (6) and one end of the lock shell (16), and a second axial guide structure (20) is provided between the spring pressure member (18) and the other end of the lock shell (16). The spring pressure member (18) is connected to the sock base (1) by a threaded structure, and an adjustment force application part (12) is provided at the outer end of the spring pressure member (18).

9. The locking assembly for the flipped half-ring according to claim 7 or 8, characterized in that, The axial anti-disengagement structure (17) includes an annular retaining ring (21) provided on the inner end of the passive telescopic lock tongue (6), and an anti-disengagement retaining ring step (22) that can cooperate with the annular retaining ring (21) is provided between the lock body mounting hole (10) and the lock slot (9).

10. The locking assembly for the flipped half-ring according to claim 8, characterized in that, The first axial guide structure (19) includes an extension post (24) disposed at the inner end of the passive telescopic latch (6), the extension post (24) being disposed at one end of the cylindrical lock housing (16); the second axial guide structure (20) includes an annular guide groove (25) disposed at the inner end of the spring pressure member (18), the other end of the lock housing (16) being disposed in the annular guide groove (25).

11. The locking assembly of the flipping half-ring according to any one of claims 1-8, characterized in that, The latch (3) includes a connecting section (26) and a large head (27) integrally connected to the upper side of the connecting section (26). The lower side of the connecting section (26) is fixedly connected to the top end face of the flip half ring (2). The width of the large head (27) is greater than that of the connecting section (26). The lock hole (4) is located between the large head (27), the connecting section (26) and the flip half ring (2), and is in the shape of a groove or a through hole. The latch (6) includes a cylindrical body (28), and the front end of the cylindrical body (28) can be inserted into the lock hole (4). The large head (27) extends obliquely, and the direction of extension passes through the rotation axis of the flipped half ring (2); The guide surface (7) includes an inclined plane or inclined slope disposed between the large head (27) and the connecting section (26) and on the side of the large head (27) away from the connecting section (26), and / or the front end of the cylindrical body (28) includes a hemispherical head (29), and the guide surface (7) includes the spherical surface of the hemispherical head (29).

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