Wear-resistant and high-corrosion-resistant transmission mechanism connecting rod lock

Abstract

The utility model relates to a wear-resistant and high-corrosion-resistant connecting rod lock of a transmission mechanism, which is designed for solving the technical problems that the conventional similar products rarely utilize new materials and new structures to wrap all parts generating relative friction with high polymer materials, so that the surface is prevented from being damaged by friction, and the dustproof, waterproof, wear-resistant and flame-retardant effects are poorer. The connecting rod lock is characterized in that when a square head at one end of a rotating shaft at a handle assembly of the connecting rod lock is sleeved with a square groove at one end of a transmission shaft, the sleeved position is hinged and fixed into a whole through a pin and sealed through glue pouring, a wear-resistant plastic gasket is arranged in the square groove of the transmission shaft at the sleeved position, and an isolation sleeve is arranged on the outer diameter of the middle of the pin in the square head of the rotating shaft; a wear-resistant plastic bushing is arranged at the other end of the rotating shaft at the hinged part of the rotating shaft and the handle; wear-resisting plastic coating is arranged on the handle end face at the hinged position of the rotating shaft and the handle, dustproof plastic coating is arranged at the position of a positioning hole of the handle, shaft hole plastic coating is arranged in a rotating shaft hole at one end in a handle groove of the base, and lock hole plastic coating is arranged in a lock cylinder hole at the other end in the handle groove of the base.

Description

Technical Field

[0001] The utility model relates to a connecting rod lock for a cabinet in the field of mobile communication equipment, and relates to a connecting rod lock for a wear-resistant and highly anti-corrosive transmission mechanism. Background Art

[0002] At present, the main current situation of the connecting rod lock of the market cabinet is that the handle rotates to drive a single gear on the transmission shaft to rotate, and then meshes with the transmission strip to move up and down along a straight line stroke, driving the upper and lower vertical rods to move, so as to open or close the cabinet. It is mainly applied to the cabinets and electrical cabinet doors in the field of mobile communication equipment. For example, the application number disclosed in the Chinese patent document is 201620049531.4, the authorization announcement date is June 29, 2016, and the utility model name is "padlock handle connecting rod lock"; another example is the application number disclosed in the Chinese patent document is 201721726344.6, the authorization announcement date is July 24, 2018, and the utility model name is "cabinet door connecting rod lock transmission mechanism"; however, for the existing locks, the high salt spray resistance treatment is generally only carried out on the surface. Some parts that generate relative friction during the use of the lock will damage the surface coating after being used dozens of times, which is easy to cause partial areas to be corroded; few similar products use new materials and new structures to wrap all the parts that generate relative friction with polymer materials to prevent friction from damaging the surface, and the dust-proof, waterproof, wear-resistant and flame-retardant effects are poor. Summary of the Invention

[0003] To overcome the above deficiencies, the purpose of the present utility model is to provide a connecting rod lock for a wear-resistant and highly anti-corrosive transmission mechanism to the field, so as to solve the technical problem that few existing similar products use new materials and new structures to wrap all the parts that generate relative friction with polymer materials to prevent friction from damaging the surface, and the dust-proof, waterproof, wear-resistant and flame-retardant effects are poor. Its purpose is achieved through the following technical solutions.

[0004] A wear-resistant and highly anti-corrosive connecting rod lock for a transmission mechanism. The handle assembly of the connecting rod lock includes a handle and a lock core. One end of the bottom of the handle is hinged with a rotating shaft, and the rotating shaft correspondingly extends out of the rotating shaft hole at one end of the handle slot in the base, and is connected to the central hole at the gear in the transmission case through a transmission shaft. The tooth openings on both sides of the outer diameter of the gear engage with the tooth holes at one end of the racks on both sides in the transmission case and drive the racks to reciprocate up and down. The other ends of the two racks respectively extend out of the transmission case. The handle is fixed to the lock hole at the other end of the handle slot in the base through the lock core at the other end. A rear cover is provided at the bottom of the lock hole of the base. The transmission case includes an upper transmission case and a lower transmission case. The racks include a short rack and a long rack. The short rack and the long rack are arranged in the symmetrically arranged rack slot holes on both sides formed by the upper transmission case and the lower transmission case being buckled together. The key point of the structural design is that when the square head at one end of the rotating shaft is sleeved with the square groove at one end of the transmission shaft, the sleeved part is hinged and fixed into one body through a pin and sealed with glue. A wear-resistant plastic gasket is provided in the square groove of the transmission shaft at the sleeved part. An isolation sleeve is provided on the outer diameter of the pin in the middle of the square head of the rotating shaft. A wear-resistant plastic bushing is provided at the other end of the rotating shaft at the hinged part of the rotating shaft and the handle. The above structure improves the dust and water protection effects of the corresponding parts and the whole, and at the same time prevents friction and damage to the surface between the corresponding parts. It has good wear resistance and flame retardancy and can withstand a temperature of 230 degrees.

[0005] A wear-resistant plastic coating is provided on the end face of the handle at the hinged part of the rotating shaft and the handle. The above plastic coating structure and the following plastic coating structures adopt a plastic coating after surface passivation, or a plastic part is coated and integrally formed, or a secondary plastic coating treatment is carried out after a stainless steel insert is used, which plays a role in dust and water protection and prevents friction and damage to the surface between the corresponding parts.

[0006] A dust-proof cover is provided at the lock core of the handle. The positioning post at one end of the bottom of the dust-proof cover is inserted into the positioning hole of the handle, and a dust-proof plastic coating is provided at the positioning hole of the handle.

[0007] The hinged part of the handle and the rotating shaft is sealed by a roll pin. The counterbores on both sides of the roll pin on the handle are filled and sealed with anaerobic glue. Thus, it is convenient to isolate air at the hinged position of the roll pin and prevent corrosion.

[0008] A shaft hole plastic coating is provided in the rotating shaft hole at one end in the handle slot of the base, and a lock hole plastic coating is provided in the lock core hole at the other end in the handle slot of the base. The above structure replaces the three-protrusion limiting structure with an inner diameter of three claws at the original rotating shaft hole of the base, and further reduces the friction and damage to the surface between the side of the tail of the base and the lock core bolt.

[0009] Wear-resistant plastic washers are respectively provided at the two side holes of the central hole of the gear. Thus, it plays a role in sealing and anti-friction.

[0010] A rack plastic coating is provided on the outer diameter and tooth holes of the rack. The above structure prevents direct contact and the single tooth is subjected to greater force.

[0011] A steel bolt is provided at the transmission shaft, with one end protruding from the transmission housing, and the other end of the steel bolt is connected to the transmission shaft. Thus, while driving the upper and lower rods through the rack to open and close the door, the door can also be opened and closed through the steel bolt at the same time.

[0012] The structure of the utility model is reasonably designed, with good dustproof, waterproof, wear-resistant and flame-retardant effects, especially preventing friction between corresponding components from damaging the surface; it is suitable for use as a connecting rod lock for metal machine cabinet doors and for further improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an exploded structural schematic diagram of an embodiment of the utility model.

[0014] Figure 2 is Figure 1 the three-dimensional structural schematic diagram after assembly.

[0015] Figure 3 is Figure 2 the sectional structural schematic diagram, and the dotted line in the figure is part of the external shape structure.

[0016] Reference numerals and names of the drawings: 1. Handle assembly, 101. Handle, 1011. Wear-resistant plastic coating, 1012. Dustproof plastic coating, 102. Lock core, 2. Roll pin, 3. Rotating shaft, 4. Base, 401. Plastic coating for shaft hole, 402. Plastic coating for lock hole, 5. Pin, 501. Isolation sleeve, 6. Wear-resistant plastic gasket, 7. Transmission shaft, 8. Short rack, 9. Upper transmission housing, 10. Gear, 11. Lower transmission housing, 12. Long rack, 13. Wear-resistant plastic washer, 14. Rear cover, 15. Dustproof cover, 16. Wear-resistant plastic bushing. EMBODIMENTS

[0017] Now, in conjunction with the drawings, the structure and use of the utility model will be further described. As Figures 1 - 3As shown in the figure, the handle assembly 1 of the link lock includes a handle 101 and a lock core 102. The rotating shaft 3 hinged at one end of the bottom of the handle correspondingly extends out of the rotating shaft hole at one end of the handle groove in the base 4, and is connected to the central hole at the gear 10 in the transmission housing through a transmission shaft 7. The tooth openings on both sides of the outer diameter of the gear are engaged with the tooth holes at one end of the racks on both sides in the transmission housing and drive the racks to move up and down reciprocally. The other ends of the two racks respectively extend out of the transmission housing. The handle is fixed to the lock hole at the other end of the handle groove in the base through the lock core at the other end. A rear cover 14 is provided at the bottom of the lock hole of the base. The transmission housing includes an upper transmission housing 9 and a lower transmission housing 11. The racks include a short rack 8 and a long rack 12. The short rack and the long rack are arranged in the symmetrically arranged rack slot holes formed by the buckling of the upper transmission housing and the lower transmission housing. Its specific structure is as follows: when the square head at one end of the rotating shaft is sleeved with the square groove at one end of the transmission shaft, the sleeved part is hinged and fixed as a whole through a pin 5 and sealed with glue. A wear-resistant plastic gasket 6 is provided in the square groove of the transmission shaft at the sleeved part. An isolation sleeve 501 is provided on the outer diameter of the pin in the square head of the rotating shaft. A wear-resistant plastic bushing 16 is provided at the other end of the rotating shaft at the hinged part of the rotating shaft and the handle. The above structure can also omit the transmission shaft, and the corresponding wear-resistant plastic gasket and pin. The rotating shaft extending out of the bottom of the base is directly connected to the gear in the transmission housing, and a circlip is provided at the end of the rotating shaft where the gear extends.

[0018] At the same time, a wear-resistant plastic coating 1011 is provided on the end face of the handle at the hinged part of the rotating shaft and the handle; a dust-proof cover 15 is provided at the lock core of the handle. The positioning post at one end of the bottom of the dust-proof cover is inserted into the positioning hole of the handle, and a dust-proof plastic coating 1012 is provided at the positioning hole of the handle; the hinged part of the handle and the rotating shaft is sealed by riveting with a roll pin 2, and the counterbore holes on both sides of the roll pin on the handle are encapsulated by pouring anaerobic glue. A shaft hole plastic coating 401 is provided in the rotating shaft hole at one end in the handle groove of the base, and a lock hole plastic coating 402 is provided in the lock core hole at the other end in the handle groove of the base. Wear-resistant plastic washers 13 are respectively provided at the two side holes of the central hole of the gear; the outer diameter and tooth holes of the rack are respectively provided with rack plastic coatings.

[0019] When in use, after the link lock is installed and fixed in the mounting holes of the cabinet door, the short racks and long racks on both sides at the rear of the cabinet door are respectively connected to the top and bottom rods. Then, in the state where the handle is opened, when the handle is rotated, the two racks and the top and bottom rods can be driven to move up and down, realizing the locking and opening of the cabinet door. According to the structures of existing similar products, a steel bolt extending out of the transmission housing can also be provided at the transmission shaft, or the rack can be omitted and only the steel bolt is provided. By operating the rotation of the steel bolt through the above structure, the locking and opening of the cabinet door can be realized.

[0020] To sum up, the improved structure of the link lock uses new materials and new structures to wrap all the parts that generate relative friction with polymer materials to prevent friction from damaging the surface, and improves its waterproof, dust-proof, anti-corrosion, wear-resistant, flame-retardant and high-strength effects.

[0021] The above content is intended to illustrate the technical means of the present utility model and does not limit the technical scope of the present utility model. Obvious improvements or replacements made by those skilled in the art in combination with the existing well-known common sense also fall within the protection scope of the claims of the present utility model. For example: in addition to the plastic coating structure of the above corresponding components, tungsten carbide treatment, tungsten carbide coating, tungsten carbide cermet coating or zinc alloy layer wrapping can also be carried out at the contact surface.

Claims

1. A wear-resistant and highly corrosion-resistant transmission mechanism connecting rod lock, the handle assembly (1) of the connecting rod lock comprising a handle (101) and a lock core (102), a rotating shaft (3) hingedly arranged at one end of the bottom of the handle corresponding to the rotating shaft hole extending out of one end of the handle groove in the base (4), and connected to the center hole of the gear (10) in the transmission housing through a transmission shaft (7), the tooth openings on both sides of the outer diameter of the gear mesh with the tooth holes at one end of the racks on both sides of the transmission housing and drive the racks to move up and down, the other ends of the racks on both sides extend out of the transmission housing respectively, and the handle is fixed to the lock hole at the other end of the handle groove in the base through the lock core at the other end; characterized in that The square head at one end of the rotating shaft (3) is fitted with the square groove at one end of the transmission shaft (7), and the fitting part is hinged and fixed as a whole by a pin (5) and sealed by glue. A wear-resistant plastic liner (6) is provided in the square groove of the transmission shaft at the fitting part, and an isolation sleeve (501) is provided in the middle outer diameter of the pin in the square head of the rotating shaft; the other end of the rotating shaft at the hinged connection between the rotating shaft (3) and the handle is provided with a wear-resistant plastic bushing (16).

2. The wear-resistant and highly corrosion-resistant transmission mechanism connecting rod lock according to claim 1 is characterized in that The end surface of the handle at the hinged joint between the rotating shaft (3) and the handle (101) is provided with a wear-resistant plastic coating (1011).

3. The wear-resistant and highly corrosion-resistant transmission mechanism connecting rod lock according to claim 1 is characterized in that A dust cover (15) is provided at the lock core (102) of the handle (101), a positioning column at one end of the bottom of the dust cover is inserted into the positioning hole of the handle, and a dust-proof plastic coating (1012) is provided at the positioning hole of the handle.

4. The wear-resistant and highly corrosion-resistant transmission mechanism connecting rod lock according to claim 1, characterized in that The hinged joint between the handle (101) and the rotating shaft (3) is sealed by a riveted joint of a knurled pin (2), and the countersunk holes of the handle on both sides of the knurled pin are encapsulated by potting anaerobic adhesive.

5. The wear-resistant and highly corrosion-resistant transmission mechanism connecting rod lock according to claim 1, characterized in that A shaft hole coating (401) is provided in the shaft hole at one end of the handle groove of the base (4), and a lock hole coating (402) is provided in the lock core hole at the other end of the handle groove of the base.

6. The wear-resistant and highly corrosion-resistant transmission mechanism connecting rod lock according to claim 1, characterized in that Wear-resistant plastic washers (13) are respectively provided at the openings on both sides of the central hole of the gear (10).

7. The wear-resistant and highly corrosion-resistant transmission mechanism connecting rod lock according to claim 1, characterized in that The outer diameter and the tooth hole of the rack are respectively provided with rack plastic wrap.

8. The wear-resistant and highly corrosion-resistant transmission mechanism connecting rod lock according to claim 1, characterized in that The transmission shaft (7) is provided with a steel bolt with one end extending out of the transmission housing, and the other end of the steel bolt is connected to the transmission shaft.

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