A mechanism for pre-embedded metal inserts
By designing the embedded metal insert mechanism of the transmission cylinder and linkage assembly, the problem that traditional embedded metal inserts require the cooperation of two people is solved, and the fast and accurate pushing and automated production of the inserts are achieved, which reduces costs and time and improves efficiency.
Patent Information
- Application Number
- CN202411293424.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2044-09-14
AI Technical Summary
The traditional pre-embedded metal insert mechanism requires two people to work together, which affects processing efficiency and is costly.
A pre-embedded metal insert mechanism including a transmission cylinder, a linkage assembly and an insert bearing assembly is designed. Through the structural coordination of the transmission cylinder and the linkage assembly, the insert can be pushed quickly and accurately, reducing manual operation.
The automated production of inserts has been achieved, which has reduced the scrap rate, reduced labor costs, and shortened the embedding time from 90 seconds to 45 seconds, significantly improving production efficiency.
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Figure CN119141772B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of mold manufacturing, in particular to a mechanism for pre-embedded metal inserts. Background Art
[0002] Insert molding is an injection molding process, also known as insert molding or embedded molding. This method involves embedding a pre-formed metal insert into the mold cavity and molding it together with the molded part. By using inserts, raw materials can be saved and production costs can be reduced, while also improving product quality and consistency.
[0003] However, in the application process of the mechanism for pre-embedded metal inserts in traditional technology, at least two people are required to cooperate with each other to achieve the pre-embedded inserts. This requires a large number of people and the cooperation of multiple people can easily affect the continuity of the pre-embedded inserts and affect the overall processing efficiency.
[0004] To this end, the present invention provides a mechanism for pre-embedded metal inserts to solve the above problems. Summary of the Invention
[0005] In view of the deficiencies in the prior art, the present invention provides a mechanism for pre-embedded metal inserts to solve the above problems.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a mechanism for embedded metal inserts, including a mounting seat, a support seat and a stabilizing seat, one side of the support seat is fixedly connected to a transmission cylinder, the top of the support seat is fixedly connected to a limiting plate, both ends of the limiting plate are fixedly connected to a blocking plate, a linkage assembly is provided on the inner side of the support seat, and the output end of the transmission cylinder and the tail of the linkage assembly are connected through an insert bearing assembly.
[0007] Preferably, the linkage assembly includes a guide seat, a stabilizing pad, an assembly seat, a locking groove, a blocking block and an assembly cavity, both ends of the top of the support seat are connected to the guide seat by bolts, the bottom end of the inner side of the support seat is connected to the stabilizing pad by bolts, the assembly seat is slidably connected between the guide seat and the stabilizing pad, the tail of the assembly seat is provided with a locking groove, the two ends of one side of the insert bearing assembly are snap-connected to the inside of the locking groove, the middle part of the top of the assembly seat is connected to the blocking block by bolts, an assembly cavity is formed between the blocking block and the assembly seat, one side of the blocking block is connected to the assembly block by bolts, and both ends of the blocking block are provided with avoidance holes The assembly cavity is equipped with a guide plate A, and the middle part of one side of the guide plate A is fixedly connected to a coil spring, and the end of the coil spring away from the guide plate A passes through the avoidance hole and is fixedly connected to the assembly block, and one end of the guide plate A is fixedly connected to a linkage block by a bolt, and the end of the linkage block away from the guide plate A is fixedly connected to a limiting block, and the limiting block is located between the two blocking plates, and the middle part of the other side of the guide plate A is fixedly connected to a supporting inclined plate by bolts, and a receiving groove is provided at the top of one end of the assembly seat, and an insert block is provided at the end of the support inclined plate away from the guide plate A, and the insert block is also assembled inside the receiving groove.
[0008] Preferably, the insert bearing assembly includes a locking block, a locking rod, a guide plate B, a return spring and a pressure plate, both ends of one side of the locking block are slidably connected to a locking rod, and the locking rod is clamped in the locking groove, and the locking rod at the same end is fixedly connected to the guide plate B on one side inside the locking block, and a return spring is fixedly connected between the guide plate B and the inner wall of the locking block, and the ends of the two guide plates B close to each other are fixedly connected to the pressure plate, and the interior of the locking block is vertically rotatably connected to a transmission screw, and the bottom end of the locking block is fixedly connected to a stabilizing plate, and the bottom end of the transmission screw is also rotatably connected to the middle of the stabilizing plate, and the outer side of the transmission screw is threadedly connected to a displacement push plate, and one end of the displacement push plate is fixedly connected to an extrusion plate, and the two ends of the extrusion plate are respectively fitted with two pressure plates.
[0009] The top of described sliding panel also is provided with an end face that is provided with of sliding panel withstands on the backrest, and the bottom of described sliding panel withstands on the backrest.
[0010] Preferably, the ends of the two blocking plates that are close to each other are equipped with rollers, and a protective layer is provided on the outer side of the rollers.
[0011] Preferably, locking holes are provided at both ends of the locking groove, and the locking rod is snap-connected to the inside of the locking hole.
[0012] Preferably, a stabilizing rod is fixedly connected between the top of the stabilizing plate and the locking block, a threaded hole and a through hole are opened in the middle of the displacement push plate, and the transmission screw is threadedly connected to the inside of the threaded hole, and there is a clearance fit between the through hole and the stabilizing rod.
[0013] Preferably, a driving groove is provided at the top end of the transmission screw, and the driving groove is hexagonal.
[0014] Preferably, a pressure inclined surface is provided on one side of the two pressure plates close to each other, and an extrusion inclined surface is provided on both ends of the extrusion plate, and the extrusion inclined surface is tightly fitted with the pressure inclined surface.
[0015] Preferably, a stabilizing pin is fixedly connected to the middle of the limiting arc plate, locking holes are provided on both sides of the locking shaft, and the stabilizing pin is snap-connected to the inside of the locking hole.
[0016] Beneficial effects
[0017] The present invention provides a mechanism for pre-embedded metal inserts. Compared with the prior art, it has the following advantages:
[0018] The mechanism of the embedded metal insert, through the structural coordination of the transmission cylinder and the linkage assembly, can quickly and accurately push the insert position, can meet the needs of automated production, effectively reduce the scrap rate, and reduce the number of people from two to one, thereby effectively reducing labor costs. At the same time, the embedding time is shortened from the original 90 seconds to 45 seconds, greatly improving production efficiency.
[0019] The mechanism of the embedded metal insert can quickly realize the linkage between the transmission cylinder and the assembly seat through the structural cooperation of the insert bearing assembly, and during subsequent maintenance operations, the transmission cylinder or the insert bearing assembly can be conveniently repaired by removing the insert bearing assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the present invention as a whole;
[0021] Figure 2 is a side view of the present invention;
[0022] Figure 3 This is a schematic diagram of the connection structure between the mounting seat and the limiting plate of the present invention;
[0023] Figure 4 It is a schematic diagram of the position of the insert bearing assembly of the present invention;
[0024] Figure 5 It is a structural diagram of the linkage assembly of the present invention;
[0025] Figure 6 Schematic diagram of the assembly position of the guide plate of the present invention;
[0026] Figure 7 Schematic diagram of the removal structure of the insert block of the present invention;
[0027] Figure 8 It is a structural schematic diagram of the insert bearing assembly of the present invention;
[0028] Figure 9 is an exploded view of the insert bearing assembly structure of the present invention;
[0029] Figure 10 It is a schematic diagram of the assembly position of the present invention;
[0030] Figure 11 It is a schematic diagram of the assembly of the present invention and the mold.
[0031] In the figure, 1, the carrying seat; 2, the supporting seat; 3, the stabilizing seat; 4, the transmission cylinder; 5, the limit plate; 6, the blocking plate; 7, the roller; 8, the linkage assembly; 9, the insert bearing assembly; 10, the guide seat; 11, the stabilizing pad; 12, the assembly seat; 13, the locking groove; 14, the blocking block; 15, the assembly cavity; 16, the assembly block; 17, the avoidance hole; 18, the guide plate A; 19, the coil spring; 20, the linkage block; 21, the limit block; 22, the support Inclined plate; 23. Receiving groove; 24. Insert block; 25. Locking block; 26. Locking rod; 27. Guide plate B; 28. Return spring; 29. Pressure plate; 30. Transmission screw; 31. Stabilizing plate; 32. Displacement push plate; 33. Extrusion plate; 34. Linear slide; 35. Guide seat; 36. Limiting arc plate; 37. Locking shaft; 38. Linkage shaft; 39. Conducting plate; 40. Conducting slot; 41. Linkage plate; 42. Linkage slot. DETAILED DESCRIPTION
[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0033] Example 1:
[0034] See also Figure 1-11 , a mechanism for pre-embedded metal inserts, including a carrying seat 1, a support seat 2 and a stabilizing seat 3, one side of the support seat 2 is fixedly connected to a transmission cylinder 4, the top of the support seat 2 is fixedly connected to a limit plate 5, both ends of the limit plate 5 are fixedly connected to a blocking plate 6, a linkage component 8 is provided on the inner side of the support seat 2, and the output end of the transmission cylinder 4 and the tail of the linkage component 8 are connected through an insert bearing component 9;
[0035] In detail, the ends of the two blocking plates 6 that are close to each other are equipped with rollers 7, and a protective layer is provided on the outside of the rollers 7. The setting of the rollers 7 makes the contact between the limit block 21 and the rollers 7 smoother;
[0036] The linkage assembly 8 includes a guide seat 10, a stabilizing pad 11, an assembly seat 12, a locking groove 13, a blocking block 14 and an assembly cavity 15. Both ends of the top of the support seat 2 are connected to the guide seat 10 by bolts, and the bottom end of the inner side of the support seat 2 is connected to the stabilizing pad 11 by bolts. The assembly seat 12 is slidably connected between the guide seat 10 and the stabilizing pad 11. The tail of the assembly seat 12 is provided with a locking groove 13. The two ends of one side of the insert bearing assembly 9 are snap-connected to the inside of the locking groove 13. The middle part of the top of the assembly seat 12 is connected to the blocking block 14 by bolts. An assembly cavity 15 is formed between the blocking block 14 and the assembly seat 12. One side of the blocking block 14 is connected to the assembly block 16 by bolts. Both ends of the blocking block 14 are provided with an avoidance hole 1 7. A guide plate A18 is assembled inside the assembly cavity 15. A coil spring 19 is fixedly connected to the middle of one side of the guide plate A18, and the end of the coil spring 19 away from the guide plate A18 passes through the avoidance hole 17 and is fixedly connected to the assembly block 16. One end of the guide plate A18 is fixedly connected to a linkage block 20 by a bolt. The end of the linkage block 20 away from the guide plate A18 is fixedly connected to a limit block 21, and the limit block 21 is located between the two blocking plates 6. The middle of the other side of the guide plate A18 is fixedly connected to a support inclined plate 22 by bolts. A receiving groove 23 is provided at the top of one end of the assembly seat 12. An insert block 24 is provided at the end of the support inclined plate 22 away from the guide plate A18, and the insert block 24 is also assembled inside the receiving groove 23.
[0037] Example 2:
[0038] See also Figure 1-11 The present embodiment provides a technical solution based on the first embodiment: the insert bearing assembly 9 includes a locking block 25, a locking rod 26, a guide plate B27, a return spring 28 and a pressure plate 29. Both ends of one side of the locking block 25 are slidably connected to the locking rod 26, and the locking rod 26 is clamped and connected with the locking groove 13. The locking rod 26 at the same end is located on one side of the interior of the locking block 25 and is fixedly connected to the guide plate B27. The guide plate B27 is fixedly connected to the inner wall of the locking block 25 with a return spring 28. The ends of the two guide plates B27 close to each other are fixedly connected to the pressure plate 29. The interior of the locking block 25 is vertically rotatably connected to a transmission screw 30. The bottom end of the interior of the locking block 25 is fixedly connected to a stabilizing plate 31, and the bottom end of the transmission screw 30 is also rotatably connected to the middle of the stabilizing plate 31. The outer side of the transmission screw 30 is threadedly connected to a displacement push plate 32. One end of the displacement push plate 32 is fixedly connected to an extrusion plate 33, and the two ends of the extrusion plate 33 are respectively fitted with the two pressure plates 29.
[0039] Furthermore, both ends of the locking groove 13 are provided with locking holes, and the locking rod 26 is snap-connected to the inside of the locking holes. The locking holes are provided so that the locking rod 26 can be moved into the locking groove 13 after being connected to the locking groove 13, thereby preventing the locking rod 26 from being separated from the locking groove 13, thereby ensuring the stability of the connection between the locking rod 26 and the locking groove 13;
[0040] Furthermore, a stabilizing rod is fixedly connected between the top of the stabilizing plate 31 and the locking block 25. A threaded hole and a through hole are opened in the middle of the displacement push plate 32, and the transmission screw 30 is threadedly connected to the inside of the threaded hole. There is a clearance fit between the through hole and the stabilizing rod. The arrangement of the stabilizing rod can effectively guide the displacement of the stabilizing plate 31 and prevent the stabilizing plate 31 from rotating uncontrollably.
[0041] Here, a driving groove is opened at the top of the transmission screw 30. The driving groove is hexagonal. By utilizing the shape characteristics of the driving groove, a person can conveniently rotate the transmission screw 30 with the help of an external hexagonal wrench, thereby ensuring the transmission efficiency of the transmission screw 30.
[0042] In detail, a pressure inclined surface is provided on the side where the two pressure plates 29 are close to each other, and an extrusion inclined surface is provided on both ends of the extrusion plate 33, and the extrusion inclined surface is tightly fitted with the pressure inclined surface. By utilizing the arrangement of the pressure inclined surface and the extrusion inclined surface, when the extrusion plate 33 is vertically displaced, the displacement of the extrusion inclined surface on the pressure inclined surface can be utilized to push the locking rod 26 out of the locking block 25;
[0043] The insert bearing assembly 9 also includes a linear slide 34, a guide seat 35, a limit arc plate 36, a locking shaft 37 and a linkage shaft 38. The other side of the locking block 25 is fixedly connected to the linear slide 34, and both ends of the outer side of the linear slide 34 are slidably connected to the guide seat 35. The tops of the two guide seats 35 are fixedly connected to the limit arc plate 36. The output end of the transmission cylinder 4 is fixedly connected to the locking shaft 37, and the two limit arc plates 36 are respectively connected to the two sides of the locking shaft 37. The middle rotation of the locking block 25 Two linkage shafts 38 are movably connected. A conductive plate 39 is fixedly connected to one side of each linkage shaft 38 near the guide seat 35. A conductive through slot 40 is defined in the middle of the conductive plate 39, and the bottom ends of the two guide seats 35 are movably connected to the inside of the two conductive through slots 40. A linkage plate 41 is fixedly connected at an angle to the end of the linkage shaft 38 near the guide plate B27. A linkage through slot 42 is fixedly connected to the middle of the linkage plate 41, and the bottom ends of the two guide plates B27 are movably connected to the inside of the linkage through slot 42.
[0044] Here, a stabilizing pin is fixedly connected to the middle of the limiting arc plate 36, and locking holes are provided on both sides of the locking shaft 37, and the stabilizing pin is snap-connected to the inside of the locking hole. By utilizing the setting of the stabilizing pin, the guide seat 35 can be stably matched with the locking shaft 37 to prevent the locking shaft 37 from detaching from the limiting arc plate 36, and an anti-slip pad is also fixedly connected to the inner side of the limiting arc plate 36, and anti-slip grooves are provided on the outer side of the anti-slip pad.
[0045] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0046] Working principle, see Figure 10 and Figure 11 First, the carrying seat 1, the supporting seat 2, and the stabilizing seat 3 are installed at the designated position on the side of the mold by bolts. Subsequently, the personnel assemble the insert on the insert block 24, and then start the transmission cylinder 4 to push the locking block 25 to move. The connection between the locking block 25 and the assembly seat 12 can drive the assembly seat 12 to follow the displacement, so as to push the insert to the designated position of the mold cavity for pre-embedding;
[0047] When the transmission cylinder 4 is damaged or the assembly seat 12 is damaged, the transmission screw 30 is first rotated with the help of an external hexagonal wrench, and the connection between the transmission screw 30 and the displacement push plate 32 can drive the extrusion plate 33 to move upward along the transmission screw 30. In addition, in conjunction with the setting of the extrusion slope and the pressure slope, when the extrusion plate 33 moves upward, the distance between the two pressure slopes gradually increases, and the guide plate B27 is pushed by the rebound of the return spring 28, so that the pressure plate 29 is always in contact with the extrusion plate 33. When the guide plate B27 is displaced, it can drive the locking rod 26 to move into the locking block 25, thereby releasing the connection with the locking groove 13.
[0048] And in the process of the two guide plates B27 approaching each other, since the guide plate B27 is also movably connected to the inside of the linkage groove 42, the displacement of the guide plate B27 inside the linkage groove 42 can be used to push the linkage plate 41, prompting the linkage plate 41 to drive the linkage shaft 38 to rotate, and cooperate with the connection between the linkage shaft 38 and the conductive plate 39, so that the conductive plate 39 pushes the guide seat 35, prompting the guide seat 35 to slide under the support of the linear slide rod 34, and then drives the two limit arc plates 36 away from each other, disengaging from the connection with the locking shaft 37, and then the locking block 25 can be moved out of the locking groove 13 to form a separation between the transmission cylinder 4 and the assembly seat 12 for subsequent maintenance.
[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A mechanism for pre-embedded metal inserts, characterized in that: It comprises a mounting seat (1), a support seat (2) and a stabilizing seat (3), one side of the support seat (2) is fixedly connected to a transmission cylinder (4), the top end of the support seat (2) is fixedly connected to a limit plate (5), both ends of the limit plate (5) are fixedly connected to a blocking plate (6), a linkage assembly (8) is provided on the inner side of the support seat (2), and the output end of the transmission cylinder (4) and the tail end of the linkage assembly (8) are connected via an insert bearing assembly (9); The linkage assembly (8) includes a guide seat (10), a stabilizing pad (11), an assembly seat (12), a locking groove (13), a blocking block (14) and an assembly cavity (15), both ends of the top of the support seat (2) are connected to the guide seat (10) by bolts, the bottom end of the inner side of the support seat (2) is connected to the stabilizing pad (11) by bolts, the assembly seat (12) is slidably connected between the guide seat (10) and the stabilizing pad (11), the tail of the assembly seat (12) is provided with a locking groove (13), the two ends of one side of the insert bearing assembly (9) are snap-connected to the inside of the locking groove (13), the middle part of the top of the assembly seat (12) is connected to the blocking block (14) by bolts, an assembly cavity (15) is formed between the blocking block (14) and the assembly seat (12), one side of the blocking block (14) is connected to the assembly block (16) by bolts, and both ends of the blocking block (14) are provided with avoidance holes ( 17), the interior of the assembly cavity (15) is equipped with a guide plate A (18), the middle part of one side of the guide plate A (18) is fixedly connected with a coil spring (19), and the end of the coil spring (19) away from the guide plate A (18) passes through the avoidance hole (17) and is fixedly connected to the assembly block (16), one end of the guide plate A (18) is fixedly connected with a linkage block (20) by bolts, the end of the linkage block (20) away from the guide plate A (18) is fixedly connected with a limit block (21), and the limit block (21) is located between the two blocking plates (6), the middle part of the other side of the guide plate A (18) is fixedly connected with a support inclined plate (22) by bolts, and a receiving groove (23) is provided at the top of one end of the assembly seat (12), and an insert block (24) is provided at the end of the support inclined plate (22) away from the guide plate A (18), and the insert block (24) is also assembled inside the receiving groove (23); The insert bearing assembly (9) includes a locking block (25), a locking rod (26), a guide plate B (27), a return spring (28) and a pressure plate (29), wherein both ends of one side of the locking block (25) are slidably connected to the locking rod (26), and the locking rod (26) is snap-connected to the locking groove (13), and the locking rod (26) at the same end is fixedly connected to the guide plate B (27) on one side inside the locking block (25), and a return spring (28) is fixedly connected between the guide plate B (27) and the inner wall of the locking block (25), and the two guide plates B (27) One end close to each other is fixedly connected to a pressure plate (29), the interior of the locking block (25) is vertically rotatably connected to a transmission screw (30), the bottom end of the interior of the locking block (25) is fixedly connected to a stabilizing plate (31), and the bottom end of the transmission screw (30) is also rotatably connected to the middle of the stabilizing plate (31), the outer side of the transmission screw (30) is threadedly connected to a displacement push plate (32), one end of the displacement push plate (32) is fixedly connected to an extrusion plate (33), and the two ends of the extrusion plate (33) are respectively in contact with the two pressure plates (29); The insert bearing assembly (9) also includes a linear slide (34), a guide seat (35), a limit arc plate (36), a locking shaft (37) and a linkage shaft (38), the other side of the interior of the locking block (25) is fixedly connected to the linear slide (34), both ends of the outer side of the linear slide (34) are slidably connected to the guide seat (35), the top ends of the two guide seats (35) are fixedly connected to the limit arc plate (36), the output end of the transmission cylinder (4) is fixedly connected to the locking shaft (37), and the two limit arc plates (36) are respectively connected to the two sides of the locking shaft (37), the interior of the locking block (25) is fixedly connected to the locking shaft (37), and the two limit arc plates (36) are respectively connected to the two sides of the locking shaft (37). Two linkage shafts (38) are rotatably connected in the middle, and a conductive plate (39) is fixedly connected to one side of the two linkage shafts (38) close to the guide seat (35). A conductive through groove (40) is provided in the middle of the conductive plate (39), and the bottom ends of the two guide seats (35) are movably connected to the inside of the two conductive through grooves (40). One end of the linkage shaft (38) close to the guide plate B (27) is obliquely fixedly connected to a linkage plate (41), and a linkage through groove (42) is fixedly connected to the middle of the linkage plate (41), and the bottom ends of the two guide plates B (27) are movably connected to the inside of the linkage through groove (42).
2. The mechanism for pre-embedded metal inserts according to claim 1, characterized in that: The ends of the two blocking plates (6) that are close to each other are both equipped with rollers (7), and a protective layer is provided on the outer sides of the rollers (7).
3. The mechanism for pre-embedded metal inserts according to claim 1, characterized in that: Locking holes are provided at both ends of the locking groove (13), and the locking rod (26) is snap-connected to the inside of the locking hole.
4. The mechanism for pre-embedded metal inserts according to claim 1, characterized in that: A stabilizing rod is fixedly connected between the top of the stabilizing plate (31) and the locking block (25), a threaded hole and a through hole are provided in the middle of the displacement push plate (32), and the transmission screw (30) is threadedly connected to the inside of the threaded hole, and a clearance fit is formed between the through hole and the stabilizing rod.
5. The mechanism for pre-embedded metal inserts according to claim 1, characterized in that: A driving groove is provided at the top end of the transmission screw (30), and the driving groove is hexagonal.
6. The mechanism for pre-embedded metal inserts according to claim 1, characterized in that: A pressure inclined surface is provided on one side of the two pressure plates (29) that are close to each other, and an extrusion inclined surface is provided on both ends of the extrusion plate (33), and the extrusion inclined surface is tightly fitted with the pressure inclined surface.
7. The mechanism for pre-embedded metal inserts according to claim 1, characterized in that: A stabilizing pin is fixedly connected to the middle of the limiting arc plate (36), locking holes are provided on both sides of the locking shaft (37), and the stabilizing pin is snap-connected to the inside of the locking hole.
Citation Information
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