Editorial Note 2016100449 There are two pages of description only A bicycle frame lock Technical field This utility model relates to a bicycle frame lock. Background technology In existing technology, most bicycle ground locks achieve fixation through the screw and the ground. As time goes on, the lock will become loose so that the anti-burglary ability reduces and the bicycle may be easily stolen. Invention content The technical problem to be solved by this utility model is to provide a bicycle frame lock. During using the device, the fixation of bicycle frame can be directly completed through the locking rod and fixed link. To avoid being stolen, the locking ring and chain lock can be further used to fix the bicycle. The nut part has smooth external surface to prevent external unlocking with violence. To solve the above problem, this utility model adopts the following technical proposal: A bicycle frame lock is characterized by that, it includes the base plate. Two through-holes are symmetrically set on the top of base plate. Fixed link is in the through-holes. Limit card is set at the lower end of fixed link. The limit card leans against the bottom of base plate. U-shaped locking rod is between the two fixed links. The screw used to fix the locking rod is set inside the fixed link. The screw has nut part. The nut part has a smooth external surface. A polygonal force application hole is at one end of nut part away from the fixed link. Locking ring is set on the outside surface of fixed link. Pouring plate is set at the bottom of base plate. The pouring plate and the base plate are of integrated structure. Optimally, protective spacer is set at the inner top of rocking rod; the protective spacer and the locking rod are fixed by gluing. Optimally, drainage hole is set on the fixed link near the bottom; the drainage hole is above the base plate. Optimally, pouring groove is set on the surface of pouring plate. Optimally, the locking ring and the fixed link are fixed by welding. Beneficial effects of this utility model are as follows: during using the device, the fixation of bicycle frame can be directly completed through the locking rod and fixed link. To avoid being stolen, the locking ring and chain lock can be further used to fix the bicycle. The nut part has smooth external surface to prevent external unlocking with violence. The structure of this device is simple, and its cost is low, so it is suitable for promotion. Descriptions of attached figures To explain the implementation example or the technical proposal more clearly, the attached figure used in the implementation example or the technical proposal is simply introduced as follows. Obviously, the attached figure just describes some implementation examples of this utility model. For common technical personnel in this field, they can gain other attached figures under the precondition of no creative work.
Fig.1 is structure diagram of this utility model. Detailed implementation way The optimized implementation example of this utility model is elaborated as follows in combination of the attached figure so that the advantages and features of this utility model can be easily understood by technical personnel in this field and the protection scope of this utility model can be defined more clearly and explicitly. According to Fig.1, a bicycle frame lock includes the base plate 1. Two through-holes (not shown) are symmetrically set on the top of base plate. Fixed link 2 is in the through-holes. Limit card 203 is set at the lower end of fixed link 2. The limit card 203 leans against the bottom of base plate 1. U-shaped locking rod 3 is between the two fixed links 2. The screw 201 used to fix the locking rod 3 is set inside the fixed link 2. The screw 201 has nut part. The nut part has a smooth external surface. A polygonal force application hole (not shown) is at one end of nut part away from the fixed link 2. Locking ring 202 is set on the outside surface of fixed link 2. Pouring plate 4 is set at the bottom of base plate 1. The pouring plate 4 and the base plate 1 are of integrated structure. As an optimal implementation example, protective spacer 311 is set at the inner top of rocking rod 3; the protective spacer 311 and the locking rod 3 are fixed by gluing. As an optimal implementation example, drainage hole 212 is set on the fixed link 2 near the bottom; the drainage hole 212 is above the base plate 1. As an optimal implementation example, pouring groove 411 is set on the surface of pouring plate 4. As an optimal implementation example, the locking ring 202 and the fixed link 2 are fixed by welding. Beneficial effects of this utility model are as follows: during using the device, the fixation of bicycle frame can be directly completed through the locking rod and fixed link. To avoid being stolen, the locking ring and chain lock can be further used to fix the bicycle. The nut part has smooth external surface to prevent external unlocking with violence. The structure of this device is simple, and its cost is low, so it is suitable for promotion. The above content shows and describes the fundamentals, main features and advantages of this utility model. The technicians of this industry should know this utility model is not limited to the implementation example mentioned above. The above implementation example and descriptions just depict the principle of this utility model. There will be various changes and improvements for this utility model without deviation from the spirit and range of this utility model. These changes and improvements will be included in the range of the protected utility model. The scope of protection required by this utility model is defined by the claim attached and its equivalent.