Lifting limiting anti-falling structure for rigging
By introducing a combination structure of a limit rod, a proximity switch and an electric limit push rod into the rigging, the rigging has double limit and anti-fall-off protection, which solves the fall-off problem caused by limit rod wear, improves the use effect and reduces maintenance costs.
Patent Information
- Application Number
- CN202422677984.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-04
AI Technical Summary
In the existing rigging limit and anti-falling structure, the contact position between the limit rod and the inner wall of the rigging is easily worn, resulting in easy falling off after long-term use, making it difficult to effectively prevent the rope from falling off.
The combination structure of limit rod, proximity switch and electric limit push rod is adopted. The electric limit push rod is controlled by the proximity switch to extend and form a double resistance force with the limit rod. The double limit is carried out in conjunction with the inner wall of the rigging to prevent it from falling off, and the installation spring is used to avoid damage caused by hard contact of the proximity switch.
The reliability of the rope limit is improved, the probability of the limit rod falling off due to wear is reduced, the service life is extended, and the cost of replacing the proximity switch is reduced.
Smart Images
Figure CN223445023U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a rigging technical field, concretely is a hoisting limiting anti -drop structure for rigging. BACKGROUND
[0002] Rigging refers to the equipment used with the cable, is used in hoisting, traction, tension and load operation, in order to prevent the rigging from being set with movable limiting rod in the use process, is used for limiting the rope of hoisting and preventing the rope from falling off.
[0003] The limiting anti -drop structure of the existing rigging utilizes torsional spring to connect the limiting rod, the limiting rod is movable inward, satisfies that the rope extends to the inside of the rigging, when the limiting rod is subjected to the outward pushing force, utilizes the contact of the limiting rod and the inner wall of the rigging, can carry out limiting anti -drop processing, but long -term use, the contact position of the limiting rod and the inner wall of the rigging is easy to wear and consume, lead to the easy occurrence of falling off phenomenon, further difficult to satisfy the limiting of the rope, therefore need to provide a kind of rigging anti -drop structure that can always guarantee that the rope is in limiting state, to improve the use effect. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of hoisting limiting anti -drop structure for rigging to solve the problem that the limiting anti -drop structure of the existing rigging is connected by torsional spring, the limiting rod is movable inward, satisfies that the rope extends to the inside of the rigging, when the limiting rod is subjected to the outward pushing force, utilizes the contact of the limiting rod and the inner wall of the rigging, can carry out limiting anti -drop processing, but long -term use, the contact position of the limiting rod and the inner wall of the rigging is easy to wear and consume, lead to the easy occurrence of falling off phenomenon, further difficult to satisfy the limiting of the rope.
[0005] To solve the above technical problem, the utility model is realized by the following technical scheme:
[0006] The utility model is a kind of hoisting limiting anti -drop structure for rigging, including limiting anti -drop part, the limiting anti -drop part includes limiting rod, proximity switch and electric limiting push rod;The limiting rod is arranged at 60 ° angle with horizontal plane, and the lower end of the limiting rod is in contact with the proximity switch, the upper portion of the lock head of the rigging is provided with electric limiting push rod, and the output end of the electric limiting push rod is in contact with the outer surface of the lower end of the limiting rod, and the input end of the electric limiting push rod is electrically connected with the output end of the proximity switch by wire.
[0007] Further, the limiting anti -drop part further includes first threaded groove;The first threaded groove is provided in the upper end of the lock head of the rigging, and the outer surface of the electric limiting push rod is fixed with the inner wall of the first threaded groove by screw thread.
[0008] Further, the limiting anti-falling part further comprises a mounting rack, a torsion spring and a mounting column; the mounting rack is threadedly connected to the middle of the front face of the rigging, and the middle of both sides of the mounting rack is connected with the torsion spring; the inner side of the torsion spring is fixed with the end of the mounting column, and the middle of the outer surface of the mounting column is fixed with the upper end of the limiting rod.
[0009] Further, the connecting part further comprises a connecting groove, a connecting block and a connecting bolt; the connecting groove is arranged in the middle of the front face of the rigging, and the connecting block is slidably arranged in the connecting groove; a connecting hole is arranged in the upper part of the front face of the connecting block and the inner wall of the connecting groove, and the connecting hole is threadedly provided with the connecting bolt.
[0010] Further, the mounting part further comprises a supporting column, a sleeve column and a mounting spring; the sleeve column is arranged in the upper part of one side of the outer surface of the supporting column, and the middle of one end of the sleeve column is fixedly connected with the mounting spring; one end of the mounting spring is fixed with the inner side of the proximity switch.
[0011] Further, the mounting part further comprises a second screw groove; the second screw groove is arranged in the inner wall of the rigging near one end of the electric limiting push rod, and the inner wall of the second screw groove is threadedly fixed with the outer surface of the supporting column.
[0012] The utility model has the following beneficial effects:
[0013] The utility model discloses a limiting anti-falling part, which is used for limiting and preventing the rope from falling off, and when the lower end of the limiting rod gradually approaches the proximity switch and forms a contact force, the proximity switch controls the electric limiting push rod, the output end of the electric limiting push rod is extended, and the lower part of the limiting rod forms a contact force with the outer surface of the lower part of the limiting rod, so that the double contact limiting of the limiting rod is formed in the inner wall of the lock, and the rope is limited and prevented from falling off, the probability of the lower part of the limiting rod being separated from the rigging is reduced, and the use effect is improved.
[0014] Based on the above beneficial effects, the proximity switch is connected and fixed between the sleeve column and the supporting column by the mounting spring, when the lower end of the limiting rod gradually approaches the proximity switch and forms a contact force, the proximity switch is extended into the supporting column by the elastic force of the mounting spring, the hard contact between the lower end of the limiting rod and the proximity switch is avoided, the proximity switch is prevented from being damaged, and the cost of replacement is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.
[0016] Figure 1 is a front view of the utility model;
[0017] Figure 2 is a rear view of the utility model;
[0018] Figure 3 is the utility model Figure 2 is an enlarged view of A in the middle;
[0019] Figure 4 is a schematic view of the installation part of the utility model.
[0020] In the drawings, the components represented by each reference numeral are listed as follows:
[0021] In the drawings: 11, connecting groove; 12, connecting block; 13, connecting bolt; 21, mounting bracket; 22, torsion spring; 23, mounting column; 24, limiting rod; 25, proximity switch; 26, first threaded groove; 27, electric limiting push rod; 31, support column; 32, sleeve column; 33, mounting spring; 34, second threaded groove. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0023] To make the purpose, technical solutions and advantages of the utility model clearer, the embodiments of the utility model will be described in further detail below with reference to the drawings.
[0024] Please refer to Figures 1-4 As shown in the figure, the utility model is a hoisting limiting anti-falling structure for rigging, which comprises a limiting anti-falling part, the limiting anti-falling part comprising a limiting rod 24, a proximity switch 25 and an electric limiting push rod 27; the limiting rod 24 is arranged at an angle of 60° to the horizontal plane, and the lower end of the limiting rod 24 is in contact with the proximity switch 25; the upper part of the lock head of the rigging is provided with the electric limiting push rod 27, and the output end of the electric limiting push rod 27 is in contact with one side of the outer surface of the lower end of the limiting rod 24; the input end of the electric limiting push rod 27 is electrically connected to the output end of the proximity switch 25 through a wire.
[0025] The limiting rod 24 uses the resistance formed by the lower end and the inner wall of the rigging to limit and prevent the rope inside the rigging from falling off. The proximity switch 25 controls the electric limiting push rod 27 after approaching a certain distance from the lower end of the limiting rod 24. The electric limiting push rod 27 uses the resistance formed by the output end and the limiting rod 24 to double limit and prevent the rope from falling off.
[0026] The limiting and anti-falling part further comprises a first threaded groove 26. The first threaded groove 26 is provided through the upper end of the lock head of the rigging, and the outer surface of the electric limiting push rod 27 is threadedly fixed with the inner wall of the first threaded groove 26.
[0027] The first threaded groove 26 threadedly installs the electric limiting push rod 27.
[0028] The limiting and anti-falling part further comprises a mounting bracket 21, a torsional spring 22 and a mounting column 23. The mounting bracket 21 is threadedly connected to the middle of the front surface of the rigging, and the middle of both sides of the mounting bracket 21 is connected with the torsional spring 22. The inner side of the torsional spring 22 is fixed with the end of the mounting column 23, and the outer surface of the lower middle of the mounting column 23 is fixed with the upper end of the limiting rod 24.
[0029] The mounting bracket 21 cooperates with the torsional spring 22 and the mounting column 23 to connect and fix the structure of the limiting rod 24, and relies on the elastic force of the torsional spring 22 to restore the original state position of the limiting rod 24 after use.
[0030] It further comprises a connecting part, which comprises a connecting groove 11, a connecting block 12 and a connecting bolt 13. The connecting groove 11 is provided in the middle of the front surface of the rigging, and the connecting block 12 is slidably arranged in the connecting groove 11. A connecting hole is provided in the front upper part of the connecting block 12 and the inner wall of the connecting groove 11, and the connecting bolt 13 is threadedly arranged in the connecting hole.
[0031] The connecting groove 11 slidably installs the connecting block 12. Through the sliding of the connecting block 12 in the connecting groove 11, the mounting bracket 21 can be adjusted at multiple positions, and the mounting bracket 21 after adjustment can be fixed by connecting the connecting bolt 13 with different position connecting holes.
[0032] Working principle: when connecting the external rope and the rigging, the limiting rod 24 is subjected to an inward force, and under the action of the torsional spring 22, the limiting rod 24 moves inward smoothly and opens, and the rope is extended to the inside of the rigging. After the force is released, the torsional spring 22 restores the deformation, so that the lower end of the limiting rod 24 forms a resistance with the inner wall of the rigging, which can limit and prevent the rope from falling off. At the same time, the limiting rod 24 in the original state gradually approaches the proximity switch 25. The proximity switch 25 controls the electric limiting push rod 27, so that the electric limiting push rod 27 extends forward and forms a resistance with the limiting rod 24, which limits and prevents the rope from falling off for the second time.
[0033] The scheme can double limit the rope to prevent falling, reduce the probability of disengagement between the lower part of the limiting rod 24 and the rigging after being worn, improve the use effect, and facilitate use.
[0034] Please refer to Figures 1-4 As shown in the drawings, the embodiment is based on the above-mentioned embodiment 1, further comprising a mounting portion, the mounting portion comprising a support column 31, a sleeve column 32 and a mounting spring 33; the sleeve column 32 is sleeved on one side of the outer surface of the upper part of the support column 31, and the mounting spring 33 is fixedly connected to the middle part of one end of the sleeve column 32, and one end of the mounting spring 33 is fixed to the inner side of the proximity switch 25;
[0035] The mounting spring 33 is fixedly connected between the sleeve column 32 and the support column 31, and the mounting spring 33 is used for mounting the proximity switch 25, and the elastic force of the mounting spring 33 can satisfy the extension of the proximity switch 25 to the inside of the support column 31 after being stressed, so as to avoid damage to itself.
[0036] The mounting portion further comprises a second threaded groove 34; the second threaded groove 34 is formed in the inner wall of the rigging near one end of the electric limiting push rod, and the inner wall of the second threaded groove 34 is threadedly fixed with the outer surface of the support column 31.
[0037] The second threaded groove 34 is used for mounting and fixing the support column 31.
[0038] Working principle: after the above-mentioned limiting rod 24 contacts the proximity switch 25, the proximity switch 25 transmits force to the mounting spring 33 after being stressed, the mounting spring 33 is compressed to make the proximity switch 25 extend to the inside of the support column 31, so that the limiting rod 24 contacts the outer surface of the support column 31.
[0039] The scheme can avoid hard contact between the lower end of the limiting rod 24 and the proximity switch 25, which can cause damage to the proximity switch 25, and can help to reduce the cost required for replacement after damage.
[0040] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, nor limit the utility model to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The embodiments are selected and described in the specification in order to better explain the principle and practical application of the utility model, so that the skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.
Claims
1. A lifting limit and anti-falling structure for rigging, characterized in that: The invention comprises a limit anti-slipping part, wherein the limit anti-slipping part comprises a limit rod (24), a proximity switch (25) and an electric limit push rod (27); the limit rod (24) is arranged at an angle of 60 degrees to the horizontal plane, and the lower end of the limit rod (24) is provided with a proximity switch (25) in abutment with the lower end thereof; the electric limit push rod (27) is passed through the upper part of the lock head of the rigging, and the output end of the electric limit push rod (27) is in abutment with one side of the outer surface of the lower end of the limit rod (24), and the input end of the electric limit push rod (27) is electrically connected to the output end of the proximity switch (25) through a wire.
2. The lifting limit and anti-falling structure for rigging according to claim 1, characterized in that: The position limiting anti-slip portion further comprises a first thread groove (26); the first thread groove (26) is penetrated and opened in the upper end of the lock head of the rigging, and the outer surface of the electric position limiting push rod (27) is threadedly fixed to the inner wall of the first thread groove (26).
3. The lifting limit and anti-falling structure for rigging according to claim 1, characterized in that: The position limiting and anti-detachment part also includes a mounting frame (21), a torsion spring (22) and a mounting column (23); the mounting frame (21) is threadedly connected to the middle of the front of the rigging, and the middle of both sides of the mounting frame (21) is penetrated and connected with a torsion spring (22), the inner side of the torsion spring (22) is fixed to the end of the mounting column (23), and the middle of the lower side of the outer surface of the mounting column (23) is fixed to the upper end of the position limiting rod (24).
4. The lifting limit and anti-falling structure for rigging according to claim 1, characterized in that: The invention also includes a connecting portion, which includes a connecting groove (11), a connecting block (12) and a connecting bolt (13); the connecting groove (11) is opened in the middle of the front of the rigging, and the connecting block (12) is slidably arranged in the connecting groove (11); connecting holes are equidistantly opened in the upper part of the front of the connecting block (12) and the inner end of the inner wall of the connecting groove (11), and the connecting bolt (13) is threadedly arranged in the connecting hole.
5. The lifting limit and anti-falling structure for rigging according to claim 1, characterized in that: The device also includes a mounting portion, which includes a pillar (31), a sleeve pillar (32) and a mounting spring (33); the sleeve pillar (32) is sleeved on one side of the upper portion of the outer surface of the pillar (31), and the middle portion of one end of the sleeve pillar (32) is fixedly connected to the mounting spring (33), and one end of the mounting spring (33) is fixed to the inner side of the proximity switch (25).
6. The lifting limit and anti-falling structure for rigging according to claim 5, characterized in that: The mounting portion further comprises a second thread groove (34); the second thread groove (34) is formed on an inner wall of the rigging close to one end of the electric limiting push rod, and the inner wall of the second thread groove (34) is threadedly fixed to the outer surface of the support (31).