CN205504750U - Municipal administration street lamp - Google Patents

Abstract

The utility model discloses a municipal street lamp, which comprises a lamp, a support arm and a lamp post. A control box is installed inside the lamp post, and an inspection door is arranged on the lamp post; the inspection door is fixed by at least two fixing parts. On the lamp post; the inspection door is provided with internal screw holes corresponding to the number of fixing parts, the fixing parts include bolts and sleeve rods, and the outer peripheral wall of the sleeve rods is provided with holes that match the internal screw holes external thread, and the inner peripheral wall of the sleeve rod is provided with the internal thread that the bolt cooperates with. The above scheme can avoid the feature that the maintenance personnel cannot open the inspection door due to the bolts on the inspection door being stuck, and avoid the need for the maintenance personnel to disassemble the inspection door by force after the failure, which wastes materials. Therefore, the utility model has the characteristics of convenient maintenance, low maintenance cost, and energy saving.

Description

a municipal street light

technical field

The utility model relates to a municipal facility, in particular to a municipal street lamp.

Background technique

At present, the inspection door of municipal street lamps is basically fixed on the lamp post by two bolts. During use, the screw holes on the inspection door are easy to enter sundries, and maintenance personnel do not need to tighten the bolts during the process of tightening the bolts. I will care, and I still use strong force to screw the bolts in place, which makes it difficult to operate when the bolts are unscrewed next time, or even unable to unscrew the bolts. In this case, the maintenance personnel cannot open the inspection door.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a municipal street lamp, which has the characteristics of preventing maintenance personnel from being unable to open the inspection door due to the bolts on the inspection door being stuck.

In order to achieve the above object, the utility model provides the following technical solutions:

A municipal street lamp, comprising a lamp, a support arm and a lamp post, a control box is installed inside the lamp post, and an inspection door is arranged on the lamp post; the inspection door is fixed on the lamp post by at least two fixing pieces; The inspection door is provided with internal screw holes corresponding to the number of fixing parts, the fixing parts include bolts and sleeve rods, and the outer peripheral wall of the sleeve rods is provided with external threads that match the internal screw holes. The internal thread matched with the bolt is provided on the inner peripheral wall of the sleeve rod.

Through the above settings, when the bolt is stuck, the sleeve rod and the bolt are combined into a "one body", which is equivalent to a bolt, and since the sleeve rod is not stuck, the sleeve rod can be rotated only by twisting the bolt. Thereby the sleeve rod and the bolt are taken out simultaneously, and the purpose of opening the maintenance door is achieved.

Further, the roughness of the external thread is greater than that of the internal thread.

Through the above settings, the maintenance personnel will not cause the sleeve rod to rotate during the process of turning the bolt clockwise.

Further, the maximum diameter of the sleeve rod is smaller than the minimum width of the head of the bolt.

Through the above settings, the bolt head can be used to play a waterproof role, preventing rainwater from directly entering the inner screw hole, causing rust on the inner screw hole or the outer thread on the sleeve rod, and blocking the sleeve rod.

Further, a rubber pad is provided on the bottom side of the head of the bolt.

Through the above settings, the rubber pad can play a better sealing role and prevent rainwater from entering the inner screw hole.

Further, upper and lower holes corresponding to the upper and lower sides are respectively eccentrically arranged on the head of the bolt and the sleeve rod.

Through the above arrangement, it is convenient to take out the sleeve rod under the condition that the bolt is not stuck.

Compared with the prior art, the utility model has the advantages that: through the above technical scheme, during normal use, the sleeve rod is always in the state of threaded connection with the inspection door, and the disassembly and assembly of the inspection door only needs to be completed by operating the bolts. In the process of moving the bolt, it will not cause the sleeve rod to rotate. Therefore, when the bolt is stuck by foreign matter, continuing to turn the bolt counterclockwise will drive the sleeve rod to rotate, and then the bolt and the sleeve rod will be taken out at the same time.

Description of drawings

Fig. 1 is the overall structural diagram of the municipal street lamp in the utility model;

Fig. 2 is a schematic diagram of the installation of the fixing part and the maintenance door in the utility model.

Reference signs: 1, light fixture, 2, support arm, 3, lamp post, 4, inspection door, 5, fixing part, 51, sleeve rod, 511, lower hole, 521, bolt head, 5211, upper hole, 522, Plug body, 6, rubber pad.

detailed description

The utility model will be further described in detail below in conjunction with the embodiments and accompanying drawings, but the implementation of the utility model is not limited thereto.

Referring to FIG. 1 , a municipal street lamp includes a lamp 1 , a support arm 2 and a lamp post 3 . The lamp post 3 is provided with an inspection door 4 ; Referring to Fig. 2, the access door 4 is provided with internal screw holes corresponding to the number of the fixing parts 5, the fixing parts 5 include bolts and sleeve rods 51, and the outer peripheral wall of the sleeve rod 51 is provided with external threads matched with the internal screw holes, and the sleeve The inner peripheral wall of the rod 51 is provided with internal threads for bolt engagement.

In this embodiment, it is further set that: the roughness of the external thread is greater than that of the internal thread.

Through the above technical scheme, during normal use, the sleeve rod 51 is always in the state of threaded connection with the access door 4, and the disassembly and assembly of the access door 4 only needs to be completed by operating the bolts, and the process of turning the bolts will not cause the sleeve. The lever 51 rotates. Therefore, when the bolt is stuck by foreign matter, continuing to turn the bolt counterclockwise will drive the sleeve rod 51 to rotate, and then the bolt and the sleeve rod 51 will be taken out simultaneously.

Further, the density of the external thread is greater than that of the internal thread.

Referring to Fig. 2, in order to prevent rainwater from entering the inner screw hole, causing the inner screw hole and the outer thread of the sleeve rod 51 to be rusted, in this embodiment, the maximum diameter of the sleeve rod 51 is set to be smaller than the minimum width of the bolt head 521 of the bolt In this way, using the bolt head 521 to form a shielding effect can prevent rainwater from directly flowing into the gap between the side wall of the sleeve rod 51 and the maintenance door 4 to a certain extent. In addition, in order to strengthen the sealing effect, in this embodiment, a rubber pad 6 is also provided on the bottom side of the bolt head 521. After the rubber pad 6 is set, if the bolt is tightened, the bolt head 521 can hold the rubber pad 6 It is pressed tightly on the inspection door 4 to achieve a perfect seal, so that rainwater cannot flow in at all.

Referring to Fig. 2, in addition, considering that if you want to take out the sleeve rod 51, under normal circumstances, that is, the bolt is not stuck, then the sleeve rod 51 cannot be rotated by twisting the bolt. Therefore, in this embodiment, On the bolt head 521 of the bolt and the sleeve rod 51, respectively, eccentrically provided with upper and lower corresponding upper holes 5211 and lower holes 511, like this, when taking the sleeve rod 51, only a hard insertion rod needs to be inserted.

Claims (5)

1. a municipal road lamp, including light fixture (1), support arm (2) and lamppost (3), is provided with control chamber in described lamppost (3), described lamppost (3) is provided with maintenance door (4)；It is characterized in that, described maintenance door (4) is fixed on lamppost (3) by least two fixture (5)；Described maintenance door (4) is provided with the inner bolt hole corresponding with fixture (5) quantity, described fixture (5) includes bolt and loop bar (51), the periphery wall of described loop bar (51) is provided with the external screw thread coordinated with described inner bolt hole, and the internal perisporium of described loop bar (51) is provided with the female thread that described bolt coordinates.

Municipal road lamp the most according to claim 1, is characterized in that, described externally threaded roughness is more than female thread.

Municipal road lamp the most according to claim 1, is characterized in that, the maximum gauge of described loop bar (51) is less than the minimum widith of the bolt head (521) of bolt.

Municipal road lamp the most according to claim 1, is characterized in that, the bottom side of the bolt head (521) of described bolt is provided with rubber cushion (6).

Municipal road lamp the most according to claim 1, is characterized in that, on the bolt head (521) of described bolt and loop bar (51), eccentric setting has the most corresponding upper hole (5211) and lower opening (511) respectively.