Hinged frame type miter gate top pivot

Abstract

The utility model provides a hinged frame type miter gate top pivot. The hinged frame type miter gate top pivot comprises a first fixed seat, a second fixed seat, a first telescopic pull rod, a second telescopic pull rod and a triangular seat, the triangular seat is provided with a first hinge part, a second hinge part and a third hinge part, and the first hinge part, the second hinge part and the third hinge part are respectively positioned at three corners of the triangular seat; the first end of the first telescopic pull rod is hinged to the top of the first fixed seat, and the second end of the first telescopic pull rod is hinged to the first hinge part of the triangular seat; the first end of the second telescopic pull rod is hinged to the top of the second fixing base, and the second end of the second telescopic pull rod is hinged to the second hinge part of the triangular base. The first telescopic pull rod and the second telescopic pull rod are both hinged to the triangular seat and arranged in the same plane, so that two pulling forces applied to the triangular seat by the first telescopic pull rod and the second telescopic pull rod are in the same plane, no torque is generated, friction caused by the torque is reduced, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to ship lock engineering technical field, concretely relates to a hinge frame type miter gate top pivot. BACKGROUND

[0002] The top pivot is an upper supporting device of the miter gate rotating center, and is a key structure for preventing the gate leaf from falling. In large miter gates, the top pivot generally adopts a wedge block structure, but the wedge block manufacturing and installation require higher, and often need to be ground on site by manual work to meet the contact area requirement. The excessive contact area eccentricity will generate additional bending moment, which is not conducive to the pull rod. In small and medium-sized miter gates, the top pivot is mostly a triangular top pivot composed of two adjustable pull rods, which are hingedly connected to the rotating pin of the gate in an up-down distribution. The structure is simple to manufacture and convenient to install. However, the gate applies pulling force in different directions through the two pull rods to make the gate in a vertical state. Because the two pulling forces are applied to the rotating pin of the gate at two different positions, the rotating pin of the gate bears a torque, which generates a large friction force when the gate rotates, aggravating the wear of the rotating pin of the gate and the corresponding pull rod, and seriously affecting the service life of the rotating pin of the gate and the corresponding pull rod.

[0003] In summary, there is an urgent need for a hinge frame type miter gate top pivot to solve or at least partially solve the problems existing in the prior art. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a hinge frame type miter gate top pivot, which aims to solve the problem of torque existing in the existing triangular top pivot structure, which affects the service life of the rotating pin of the gate and the corresponding pull rod. The specific technical scheme is as follows:

[0005] A hinge frame type miter gate top pivot, comprising a first fixed seat, a second fixed seat, a first telescopic pull rod, a second telescopic pull rod and a triangular seat; the triangular seat has a first hinge part, a second hinge part and a third hinge part, and the first hinge part, the second hinge part and the third hinge part are located at the three corners of the triangular seat respectively; the first end of the first telescopic pull rod is hingedly connected to the top of the first fixed seat, and the second end of the first telescopic pull rod is hingedly connected to the first hinge part of the triangular seat; the first end of the second telescopic pull rod is hingedly connected to the top of the second fixed seat, and the second end of the second telescopic pull rod is hingedly connected to the second hinge part of the triangular seat.

[0006] Further, it further comprises a diagonal pull rod, the first end of the diagonal pull rod is hingedly connected to the second fixed seat, and the second end of the diagonal pull rod is hingedly connected to the first hinge part of the triangular seat.

[0007] Further, the first telescopic pull rod comprises a first connecting arm, a second connecting arm, a screw sleeve and a locking piece, the first end of the first connecting arm is hinged to the first fixing seat, the second end of the first connecting arm is provided with a screw thread in the outer periphery, and the second end of the first connecting arm is threadedly connected with the first end of the screw sleeve; the first end of the second connecting arm is hinged to the first hinge part of the triangular seat, the second end of the second connecting arm is provided with a screw thread in the outer periphery, and the second end of the second connecting arm is threadedly connected with the screw sleeve; and the screw threads on the first connecting arm and the second connecting arm are opposite in rotation direction.

[0008] Preferably, the locking piece comprises a limiting block, a supporting seat and a first fastener, the supporting seat is fixedly connected to the first connecting arm, the limiting block is fixedly connected to the supporting seat through the first fastener, the screw sleeve is provided with a first limiting groove in the outer periphery, and a plurality of first limiting grooves are distributed at intervals along the outer periphery of the screw sleeve, the limiting block extends downward to form a protrusion, and the protrusion is embedded in the corresponding first limiting groove.

[0009] Further, the end of the screw sleeve close to the supporting seat is provided with a protrusion, the protrusion is fixedly connected to the outer periphery of the screw sleeve, a plurality of protrusions are distributed at intervals along the circumference of the screw sleeve, and the first limiting groove is enclosed by the adjacent two protrusions.

[0010] Preferably, the locking piece comprises a limiting block, a supporting seat and a first fastener, the supporting seat is fixedly connected to the first connecting arm, the limiting block is fixedly connected to the supporting seat through the first fastener, the screw sleeve is provided with a first limiting groove in the outer periphery, and a plurality of first limiting grooves are distributed at intervals along the outer periphery of the screw sleeve, the limiting block extends downward to form a protrusion, and the protrusion is embedded in the corresponding first limiting groove.

[0011] Further, the locking piece further comprises an elastic pad, the elastic pad is sleeved on the outer periphery of the first connecting arm, and the elastic pad is arranged between the limiting sliding sleeve and the second fastener.

[0012] Further, the outer periphery of the screw sleeve is provided with a spanner clamping surface.

[0013] Further, the middle part of the screw sleeve is provided with a ring groove.

[0014] Further, the first fixing seat comprises a top seat, a vertical rod, a horizontal rod and an inclined strut, the vertical rod, the horizontal rod and the inclined strut are sequentially and end-to-end connected to form a triangular structure, the top seat is fixedly connected to the top of the vertical rod, and the first telescopic pull rod is hinged to the top seat.

[0015] The technical scheme of the utility model has the following beneficial effects:

[0016] The first telescopic pull rod is hinged on the first hinge part of the triangular seat, and the second telescopic pull rod is hinged on the second hinge part of the triangular seat, the first telescopic pull rod, the second telescopic pull rod and the triangular seat can be arranged in the same plane because the two hinge points are not in the same position, the force exerted on the triangular seat by the first telescopic pull rod and the second telescopic pull rod is a pulling force, and the two pulling forces are in the same plane, so that no torque is generated, when the triangular seat is hinged with the rotating pin of the gate, no torque exists between the triangular seat and the rotating pin of the gate, the friction caused by the torque is reduced, and the service life of the rotating pin of the gate and the corresponding pull rod is prolonged, and the operation safety of the gate is improved.

[0017] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. Figures 1-8 The utility model will be further explained in detail. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings that constitute a part of this application are used to provide further understanding of the utility model, the illustrative embodiment of the utility model and the explanation thereof are used to explain the utility model, and do not constitute undue limitation on the utility model.

[0019] Figure 1 It is the whole structure schematic diagram of a hinge frame type miter gate top pivot embodiment 1 of the utility model,

[0020] Figure 2 It is the local enlarged schematic diagram of a hinge frame type miter gate top pivot embodiment 1 of the utility model,

[0021] Figure 3 It is the explosion state diagram of the first telescopic pull rod in a hinge frame type miter gate top pivot embodiment 1 of the utility model,

[0022] Figure 4 It is the internal structure schematic diagram of the first telescopic pull rod in a hinge frame type miter gate top pivot embodiment 1 of the utility model,

[0023] Figure 5 It is the whole structure schematic diagram of a hinge frame type miter gate top pivot embodiment 2 of the utility model,

[0024] Figure 6 It is the local enlarged schematic diagram of a hinge frame type miter gate top pivot embodiment 2 of the utility model,

[0025] Figure 7 It is one of the explosion state diagram of the first telescopic pull rod in a hinge frame type miter gate top pivot embodiment 2 of the utility model,

[0026] Figure 8This is the second exploded view of the first telescopic rod in Embodiment 2 of the top pivot of a hinged frame type herringbone gate of this utility model.

[0027] The components are as follows: 1. First fixed seat; 11. Top seat; 12. Vertical pole; 13. Horizontal bar; 14. Diagonal brace; 2. Second fixed seat; 3. First telescopic rod; 31. First connecting arm; 311. Slide groove; 32. Second connecting arm; 33. Screw sleeve; 331. First limiting groove; 332. Protrusion; 333. Second limiting groove; 334. Wrench locking surface; 34. Locking component; 341. Limiting block; 3411. Protrusion; 342. Support seat; 343. First fastener; 344. Limiting slide sleeve; 3441. Slider; 3442. Positioning block; 345. Second fastener; 346. Spring pad.

[0028] 4. Second telescopic rod; 5. Triangular seat; 51. First hinge; 52. Second hinge; 53. Third hinge; 6. Diagonal rod. Detailed Implementation

[0029] To facilitate understanding of this invention, a more comprehensive description is provided below, along with preferred embodiments. However, this invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this invention.

[0030] 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. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0031] Example 1:

[0032] See Figures 1-4 This embodiment provides a hinged frame type herringbone gate top pivot, including a first fixed seat 1, a second fixed seat 2, a first telescopic rod 3, a second telescopic rod 4, and a triangular seat 5; the triangular seat 5 has a first hinge portion 51, a second hinge portion 52, and a third hinge portion 53, which are respectively located at the three corners of the triangular seat 5; the first end of the first telescopic rod 3 is hinged to the top of the first fixed seat 1, and the second end of the first telescopic rod 3 is hinged to the first hinge portion 51 of the triangular seat 5; the first end of the second telescopic rod 4 is hinged to the top of the second fixed seat 2, and the second end of the second telescopic rod 4 is hinged to the second hinge portion 52 of the triangular seat 5.

[0033] Specifically, the first fixing seat 1 and the second fixing seat 2 form an included angle with each other, and the first fixing seat 1 and the second fixing seat 2 are used to fix them on the gate body; the top rotating pin of the gate is hinged to the third hinge part 53 of the triangular seat 5.

[0034] It is known that the first telescopic rod 3 is hinged to the first hinge portion 51 of the triangular seat 5, and the second telescopic rod 4 is hinged to the second hinge portion 52 of the triangular seat 5. Since the two hinge points are not in the same position, the first telescopic rod 3, the second telescopic rod 4, and the triangular seat 5 can be arranged in the same plane. Therefore, the forces applied to the triangular seat 5 by the first telescopic rod 3 and the second telescopic rod 4 are both tension forces, and since the two tension forces are in the same plane, no torque is generated. As a result, when the triangular seat 5 is hinged to the rotating pin of the gate, there is no torque between the triangular seat 5 and the rotating pin of the gate, which reduces the friction caused by torque and thus improves the service life of the gate rotating pin and the corresponding first telescopic rod 3 and second telescopic rod 4.

[0035] Furthermore, it also includes a tie rod 6, the first end of which is hinged to the second fixed seat 2, and the second end of which is hinged to the first hinge part 51 of the triangular seat 5.

[0036] It is known that the first fixed seat 1, the triangular seat 5, the second fixed seat 2 and the gate body form a quadrilateral structure. However, the quadrilateral structure is not very stable. By setting the diagonal tie rod 6, the quadrilateral structure is transformed into a triangular structure, which improves the overall stability.

[0037] Furthermore, the first telescopic rod 3 includes a first connecting arm 31, a second connecting arm 32, a threaded sleeve 33, and a locking member 34. The first end of the first connecting arm 31 is hinged to the first fixed base 1, and the second end of the first connecting arm 31 is threaded on its outer periphery. The second end of the first connecting arm 31 is threadedly connected to the first end of the threaded sleeve 33. The first end of the second connecting arm 32 is hinged to the first hinge portion 51 of the triangular base 5, and the second end of the second connecting arm 32 is threaded on its outer periphery. The second end of the second connecting arm 32 is threadedly connected to the threaded sleeve 33. The threads on the first connecting arm 31 and the threads on the second connecting arm 32 have opposite directions of rotation. It should be noted that the threaded sleeve has internal threads at both ends, and the internal threads at both ends have opposite directions of rotation, so that the threaded sleeve can be smoothly connected to the first and second connecting arms. It is worth noting that the threaded sleeve 33 has an annular groove in its middle. The annular groove allows the first connecting arm 31 and the second connecting arm 32 to move to the middle limit position of the threaded sleeve 33, thereby expanding the adjustment range of the threaded sleeve 33.

[0038] It is known that because the threads on the first connecting arm 31 and the second connecting arm 32 have opposite directions of rotation, when the sleeve 33 is rotated, the first connecting arm 31 and the second connecting arm 32 simultaneously extend from or retract into the sleeve 33, thus facilitating the adjustment of the length of the first telescopic rod 3. After the length of the first telescopic rod 3 is adjusted, the locking member 34 is operated to lock the sleeve 33. At this time, the length of the first telescopic rod 3 will not change under the interference of external forces, completing the adjustment of the length of the first telescopic rod 3. When it is necessary to adjust the length of the first telescopic rod 3 again, simply unlock the first telescopic rod 3 to allow the sleeve 33 to rotate freely, thus facilitating the adjustment of the first telescopic rod 3.

[0039] Furthermore, the locking member 34 includes a limiting block 341, a support base 342, and a first fastener 343. The support base 342 is fixedly connected to the first connecting arm 31 by welding. The limiting block 341 is fixedly connected to the support base 342 by the first fastener 343. The outer periphery of the threaded sleeve 33 is provided with a first limiting groove 331, and multiple first limiting grooves 331 are provided. The multiple first limiting grooves 331 are distributed at intervals along the outer periphery of the threaded sleeve 33. The limiting block 341 extends downward to form a protrusion 3411, and the protrusion 3411 is embedded in the corresponding first limiting groove 331.

[0040] Specifically, the first fastener 343 is a screw, the limiting block 341 is detachably connected to the top of the support base 342 by the screw, and the limiting block 341 and the protrusion 3411 extend along the length direction of the first connecting arm 31.

[0041] It can be understood that when the length of the first telescopic rod 3 needs to be adjusted, the screw and the limiting block 341 are removed. At this time, the threaded sleeve 33 is unlocked and can be rotated smoothly. By rotating the threaded sleeve 33, the first connecting arm 31 and the second connecting arm 32 extend or retract from the threaded sleeve 33 simultaneously, thereby adjusting the length of the first telescopic rod 3. After the length of the first telescopic rod 3 is adjusted, the limiting block 341 is installed on the support base 342 with screws, so that the protrusion 3411 on the limiting block 341 is embedded in the corresponding first limiting groove 331, thereby preventing the threaded sleeve 33 from rotating under the interference of external forces and locking the threaded sleeve 33.

[0042] Furthermore, a protrusion 332 is provided on one end of the threaded sleeve 33 near the support base 342. The protrusion 332 is fixedly connected to the outer periphery of the threaded sleeve 33. Multiple protrusions 332 are provided and distributed at intervals along the circumference of the threaded sleeve 33. The first limiting groove 331 is formed by two adjacent protrusions 332.

[0043] It is known that the slotted structure on the threaded sleeve 33 will reduce the wall thickness of the threaded sleeve 33 and weaken its structural strength. However, by setting the protrusion 332 on the outer periphery of the threaded sleeve 33, the structural strength of the threaded sleeve 33 will not be weakened, but will be enhanced. Therefore, this setting method makes the overall structural strength of the threaded sleeve 33 higher, less prone to damage, and improves the service life of the threaded sleeve 33.

[0044] Furthermore, the outer periphery of the threaded sleeve 33 is provided with a wrench locking surface 334.

[0045] It is understood that a wrench locking surface 334 is provided on the outer circumferential surface of the threaded sleeve 33. When it is necessary to rotate the threaded sleeve 33, the wrench can be engaged with the wrench locking surface 334 to facilitate rotation of the threaded sleeve 33. Of course, in some other embodiments, a handle can also be provided on the threaded sleeve 33. The handle is set perpendicular to the outer surface of the threaded sleeve 33, so that the threaded sleeve 33 can be easily rotated by the handle.

[0046] Furthermore, the third hinge portion 53 is a hinge hole or a hinge shaft.

[0047] It can be seen that when the rotating pin of the gate is directly connected to the triangular seat 5, the corresponding third hinge part 53 on the triangular seat 5 is a hinge hole, and the hinge hole is directly hinged to the rotating pin of the gate; when the rotation center of the gate is a shaft hole, the triangular seat 5 is a hinge shaft, and the hinge shaft can be easily hinged to the shaft hole at the rotation center of the gate.

[0048] Furthermore, the first fixed base 1 includes a top base 11, an upright 12, a horizontal bar 13, and a diagonal brace 14. The upright 12, the horizontal bar 13, and the diagonal brace 14 are connected end to end in a triangular structure. The top base 11 is fixedly connected to the top of the upright 12, and the first telescopic rod 3 is hinged to the top base 11.

[0049] Specifically, during the construction of the gate body, the uprights 12, horizontal bars 13, and diagonal braces 14 are all pre-embedded in the gate body. After the gate body is poured, the uprights 12, horizontal bars 13, and diagonal braces 14 are firmly fixed in the gate body, leaving only the hinged mounting end of the top seat 11 exposed outside the gate body. During the pre-embedding and pouring, it is necessary to ensure that the hinge shaft of the hinge point on the top seat 11 is in a vertical state.

[0050] It is known that this construction method ensures that the first fixed seat 1 is firmly fixed to the gate body. Furthermore, the vertical rod 12, horizontal rod 13, and diagonal brace 14 form a triangular structure, which improves the overall stability of the fixed seat and prevents the first fixed seat 1 from deforming during dam body pouring, thus avoiding a change in the relative position of the top seat 11.

[0051] It should be noted that the structure of the second fixing seat 2 is basically the same as that of the first fixing seat 1, and will not be described in detail here.

[0052] Example 2:

[0053] See Figures 5-8 The difference between this embodiment and Embodiment 1 lies in the locking member 34. In this embodiment, the locking member 34 includes a limiting sleeve 344 and a second fastener 345. The limiting sleeve 344 is slidably connected to the first connecting arm 31, and the second fastener 345 is threadedly connected to the first connecting arm 31. A groove 311 is provided on the first connecting arm 31 along its own axis. A slider 3441 extends from the limiting sleeve 344 toward the groove 311. The threaded sleeve 33 is close to the first connecting arm 31. One end is provided with a second limiting groove 333, and multiple second limiting grooves 333 are arranged in a ring along the end face of the threaded sleeve 33; a positioning block 3442 extends on the limiting sleeve 344 toward the direction of the second limiting groove 333, and the positioning block 3442 is embedded in the corresponding second limiting groove 333; a second fastener 345 is threadedly connected to the first connecting arm 31, and the second fastener 345 is used to prevent the positioning block 3442 from disengaging from the corresponding second limiting groove 333.

[0054] It is known that the slider 3441 is fixedly connected to the limiting sleeve 344, and the slider 3441 slides in the second groove 311. The cooperation between the slider 3441 and the second groove 311 restricts the rotation of the limiting sleeve 344. That is, the limiting sleeve 344 can only slide along the length of the first connecting arm 31 and cannot rotate. Therefore, when the positioning block 3442 on the limiting sleeve 344 is embedded in the corresponding second limiting groove 333, the screw sleeve 33 is restricted from rotating, that is, the screw sleeve 33 is locked. The second fastener 345 presses the limiting sleeve 344 against the end of the screw sleeve 33 to prevent the positioning block 3442 on the limiting sleeve 344 from sliding out of the second limiting groove 333, thus ensuring the stability of the lock. When it is necessary to unlock the screw sleeve 33, simply loosen the second fastener 345, so that the limiting sleeve 344 slides away from the screw sleeve 33, and the positioning block 3442 on the limiting sleeve 344 slides out from the second limiting groove 333, thereby unlocking the screw sleeve 33. At this time, the screw sleeve 33 can rotate freely.

[0055] It should be noted that the second fastener 345 is a round nut with a groove on its outer circumference. The round nut can be rotated by engaging a wrench in the groove.

[0056] Furthermore, the locking member 34 also includes a spring washer 346, which is sleeved on the outer periphery of the first connecting arm 31 and is arranged between the limiting sleeve 344 and the second fastener 345.

[0057] It is understood that, through the design of the spring washer 346, the spring washer 346 is compressed when the second fastener 345 is tightened. Furthermore, during use, the spring washer 346 applies a spring force to the second fastener 345, with the direction of the spring force along the first connecting arm 31. This generates significant friction between the second fastener 345 and the first connecting arm 31, preventing the first fastener 343 from loosening. It should be noted that the spring washer 346 can be made of steel, or it can be made of materials with elastic properties such as rubber or silicone.

[0058] The remaining aspects are basically the same as in Example 1, and will not be repeated here.

[0059] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hinged frame type V-gate top pivot, characterized in that: It includes a first fixed seat (1), a second fixed seat (2), a first telescopic rod (3), a second telescopic rod (4), and a triangular seat (5); The triangular base (5) has a first hinge (51), a second hinge (52) and a third hinge (53), and the first hinge (51), the second hinge (52) and the third hinge (53) are respectively located at the three corners of the triangular base (5); The first end of the first telescopic rod (3) is hinged to the top of the first fixed seat (1), and the second end of the first telescopic rod (3) is hinged to the first hinge part (51) of the triangular seat (5). The first end of the second telescopic rod (4) is hinged to the top of the second fixed seat (2), and the second end of the second telescopic rod (4) is hinged to the second hinge part (52) of the triangular seat (5).

2. The hinged frame type herringbone gate top pivot according to claim 1, characterized in that: It also includes a tie rod (6), the first end of which is hinged to the second fixed seat (2), and the second end of which is hinged to the first hinge part (51) of the triangular seat (5).

3. The hinged frame type herringbone gate top pivot according to claim 1, characterized in that: The first telescopic rod (3) includes a first connecting arm (31), a second connecting arm (32), a screw sleeve (33) and a locking member (34). The first end of the first connecting arm (31) is hinged to the first fixed seat (1). The second end of the first connecting arm (31) is provided with a thread on its outer periphery. The second end of the first connecting arm (31) is threadedly connected to the first end of the screw sleeve (33). The first end of the second connecting arm (32) is hinged to the first hinge part (51) of the triangular seat (5), and the second end of the second connecting arm (32) is provided with a thread on the outer periphery. The second end of the second connecting arm (32) is threadedly connected to the threaded sleeve (33). The threads on the first connecting arm (31) have opposite directions of rotation to the threads on the second connecting arm (32).

4. The hinged frame type herringbone gate top pivot according to claim 3, characterized in that: The locking member (34) includes a limiting block (341), a support base (342), and a first fastener (343). The support base (342) is fixedly connected to the first connecting arm (31). The limiting block (341) is fixedly connected to the support base (342) through the first fastener (343). The outer periphery of the threaded sleeve (33) is provided with a first limiting groove (331), and multiple first limiting grooves (331) are provided. Multiple first limiting grooves (331) are distributed at intervals along the outer periphery of the threaded sleeve (33). The limiting block (341) extends downward to form a protrusion (3411), and the protrusion (3411) is embedded in the corresponding first limiting groove (331).

5. The hinged frame type herringbone gate top pivot according to claim 4, characterized in that: The threaded sleeve (33) is provided with a protrusion (332) at one end near the support base (342). The protrusion (332) is fixedly connected to the outer periphery of the threaded sleeve (33). Multiple protrusions (332) are provided and are distributed at intervals along the circumference of the threaded sleeve (33). The first limiting groove (331) is formed by two adjacent protrusions (332).

6. The hinged frame type herringbone gate top pivot according to claim 3, characterized in that: The locking member (34) includes a limiting sleeve (344) and a second fastener (345). The limiting sleeve (344) is slidably connected to the first connecting arm (31), and the second fastener (345) is threadedly connected to the first connecting arm (31). The first connecting arm (31) is provided with a groove (311) along its own axis. The limiting sleeve (344) has a slider (3441) extending into the sliding groove (311). The threaded sleeve (33) has a second limiting groove (333) at one end near the first connecting arm (31). Multiple second limiting grooves (333) are arranged in a ring along the end face of the threaded sleeve (33). A positioning block (3442) extends on the limiting sleeve (344) toward the second limiting groove (333), and the positioning block (3442) is embedded in the corresponding second limiting groove (333); The second fastener (345) is threaded onto the first connecting arm (31), and the second fastener (345) is used to prevent the positioning block (3442) from disengaging from the corresponding second limiting groove (333).

7. The hinged frame type herringbone gate top pivot according to claim 6, characterized in that: The locking member (34) further includes a spring pad (346), which is sleeved on the outer periphery of the first connecting arm (31) and is arranged between the limiting sleeve (344) and the second fastener (345).

8. A hinged frame type herringbone gate top pivot according to any one of claims 3-7, characterized in that: The outer periphery of the threaded sleeve (33) is provided with a wrench locking surface (334).

9. The hinged frame type herringbone gate top pivot according to claim 8, characterized in that: The threaded sleeve (33) has an annular groove in the middle.

10. A hinged frame type herringbone gate top pivot according to any one of claims 1-7, characterized in that: The first fixed base (1) includes a top base (11), a vertical rod (12), a horizontal rod (13), and a diagonal brace (14). The vertical rod (12), the horizontal rod (13), and the diagonal brace (14) are connected end to end in a triangular structure. The top base (11) is fixedly connected to the top of the vertical rod (12). The first telescopic rod (3) is hinged to the top base (11).

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