Traffic signal lamp with protection mechanism

Abstract

The application discloses a traffic signal lamp with a protection mechanism, which comprises a base as a bearing structure, an annular upper end positioning seat fixedly arranged at the upper end of the base, and a protective sleeve detachably arranged at the upper end of the upper end positioning seat and sleeved with the outer periphery of a traffic signal lamp body. The application has the following advantages and effects: the protective sleeve is convenient to install and detach, thereby providing convenience for later regular maintenance; the protective sleeve and the traffic signal lamp body are arranged in a split mode, the protective sleeve can still be used again after the traffic signal lamp body is damaged, thereby improving resource utilization.

Description

Technical Field

[0001] This invention relates to the field of traffic lights, and in particular to a traffic light with a protective mechanism. Background Technology

[0002] Traffic lights are signals that direct traffic. They generally consist of red, green, and yellow lights. A red light indicates that passage is prohibited, a green light indicates that passage is permitted, and a yellow light indicates a warning.

[0003] Existing traffic lights are generally installed on the roadside. When traffic is congested or drivers lack skill, they may collide with or scrape the traffic light poles, causing damage. Therefore, it is necessary to add protective mechanisms to traffic lights. These protective mechanisms should also have the following advantages: ① easy installation / removal for regular maintenance; ② they should be installed as independent units on the traffic light so that it can be reused after damage, improving resource utilization. Summary of the Invention

[0004] The purpose of this invention is to provide a traffic signal light with a protective mechanism and a method of using the same, in order to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0006] To achieve the above objectives, the present invention provides a traffic signal light with a protective mechanism, characterized in that: it includes a base as a load-bearing structure, an annular upper positioning seat is fixedly provided on the upper end of the base, and a protective sleeve is detachably provided on the upper end of the upper positioning seat, the protective sleeve being fitted around the outer periphery of the traffic signal light body.

[0007] A further feature is that the lower end of the protective sleeve can connect with the upper positioning seat, and mounting grooves are provided on both sides opposite to the upper positioning seat. A fixing component is fixedly installed in each mounting groove. When the protective sleeve connects with the upper positioning seat, the fixing component stably fixes the protective sleeve to the upper end of the upper positioning seat. A cylindrical lamp post is fixedly installed at the lower end of the traffic light body. The protective sleeve is annular, and a first longitudinal through-hole is provided inside the protective sleeve. A second longitudinal through-hole is provided in the center of the upper positioning seat. The lamp post can pass through the first and second longitudinal through-holes and extend into the base, where it is fixed by a threaded connection. The width of the first longitudinal through-hole is consistent with the cross-sectional width of the lamp post, and the lamp post remains in contact with the inner wall of the first longitudinal through-hole.

[0008] The protective sleeve consists of an outer hard alloy layer and an inner elastic buffer layer.

[0009] A further configuration is as follows: the fixing assembly includes a main housing fixedly disposed within the mounting groove. The main housing consists of a shell and a lower end cap, which are fixed together by a first screw. The shell has a hollow inner cavity, and a longitudinal slider is disposed within this cavity. The longitudinal slider consists of a longitudinal displacement section and a lateral limiting section. The lateral limiting section is fixed to the outer side of the lower end of the longitudinal displacement section, and both the outer side of the lateral limiting section and the inner side of the longitudinal displacement section are in contact with the sidewall of the inner cavity. A longitudinal positioning rod is disposed within the inner cavity. The upper end of the rod is attached to the upper wall of the inner cavity and fixed by a second screw. The positioning rod extends longitudinally downward. The transverse limiting section has an opening for the positioning rod to pass through downward. A lower support platform is provided at the bottom of the inner cavity. The lower support platform is fixed to the upper end of the lower cover. After the positioning rod passes through the opening, it will abut against the upper surface of the lower support platform. A positioning collar is fixedly provided on the upper half of the positioning rod. A return spring is compressed between the positioning collar and the transverse limiting section. Under the elastic force of the return spring, the transverse limiting section maintains the tendency to move downward.

[0010] The upper end of the housing has an upper through hole, the position of which corresponds to the longitudinal displacement segment; the lower end of the protective sleeve is fixedly provided with a contact block, the lower end of which has a locking groove for the longitudinal displacement segment to be inserted after passing through the upper through hole; a drive unit is provided inside the housing to provide the driving force for the longitudinal displacement segment to move upward.

[0011] A further configuration is as follows: the drive unit includes a pipe interface located on the outside of the lower end cover, and a knob at the upper end of the pipe interface for controlling its internal conduction / cutoff; a main air passage is formed inside the lower end cover, and an auxiliary air passage is formed inside the lower end support platform; two air passages are formed between the lower end support platform and the two side walls of the inner cavity, respectively; the auxiliary air passage is connected to the main air passage and simultaneously connected to the two air passages; both air passages are located below the longitudinal slider, so that the injected gas can push the longitudinal displacement segment upward to embed it into the locking groove.

[0012] A further feature is that a first buffer pad and a second buffer pad are fixedly provided on the upper surface of the lower support platform, which reduce the impact force of the longitudinal slider returning to its original position; the first buffer pad has a recessed groove inside for the lower end of the positioning rod to extend into.

[0013] A further feature is that a limiting step is fixedly provided on the side wall inside the housing to abut against the lateral limiting section to achieve the limiting purpose.

[0014] A further configuration is provided: a fixed horizontal block is provided at the upper end of the longitudinal displacement segment, and the fixed horizontal block is fixed to the longitudinal displacement segment by a small screw; two positioning inserts are provided on both sides of the fixed horizontal block, and the two positioning inserts slide horizontally on the upper end face of the longitudinal displacement segment; a first extension is fixedly provided at the lower end of the positioning insert, and a first displacement groove is opened on the upper end face of the longitudinal displacement segment. The first extension extends into the first displacement groove, and a small spring is compressed between the inner wall of the outer side of the first displacement groove and the first extension, and the positioning insert is stably pushed inward by the elastic force of the small spring.

[0015] The locking groove has anti-detachment grooves on both sides. The outer end of the positioning insert is fixedly provided with an anti-detachment block that can be partially embedded in the anti-detachment groove. The anti-detachment block can be embedded to abut against the bottom of the anti-detachment groove to further fix the protective sleeve. The inner side of the positioning insert is fixedly provided with a second extension section. The side of the fixing block is provided with a second transverse displacement groove. The second extension section is located in the second displacement groove. When the anti-detachment block is embedded to abut against the bottom of the anti-detachment groove, the second extension section is still partially located in the second displacement groove.

[0016] There is a gap between the bottom of the second displacement groove and the second extension section, forming a sealed movable cavity. The fixed cross block has a secondary connecting channel connected to the movable cavity. The longitudinal displacement section has a first air guide channel inside. The upper end of the first air guide channel forms a branch to connect with the two secondary connecting channels respectively. The lower end of the first air guide channel communicates with the corresponding air guide passage. The gas introduced into the air guide passage can reach the movable cavity, thereby pushing the positioning insert outward, so that the anti-detachment block can be embedded into the bottom of the anti-detachment groove.

[0017] A further setting is that when the inner side of the positioning insert abuts against the side wall of the fixed horizontal block, the cross-sectional width of the movable cavity is consistent with the cross-sectional width of the secondary connecting channel.

[0018] A further feature is that the upper end of the upper positioning seat is fixedly provided with a positioning protrusion that can be embedded into the lower end of the protective sleeve.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. In this invention, the protective sleeve is detachably installed on the upper positioning seat of the base, separately from the traffic light body, and is detachable. The fixing components on both sides of the upper positioning seat can stably fix the protective sleeve to the upper end of the upper positioning seat. The lamp post of the traffic light body can be installed in the first longitudinal perforation inside the protective sleeve by insertion, so as to protect the lamp post of the traffic light body, effectively preventing vehicles from colliding or scratching the lamp post, and providing excellent protection. The first longitudinal perforation is consistent with the cross-sectional width of the lamp post, and the lamp post is kept in contact with the inner wall of the first longitudinal perforation, which can prevent gaps from forming and causing the lamp panel to shake under impact, thus providing excellent stability.

[0021] 2. In this invention, the protective sleeve is composed of a hard alloy layer and an elastic buffer layer. The hard alloy layer can prevent deformation, and the elastic buffer layer can reduce the impact force.

[0022] 3. In this invention, the inner cavity of the fixing component is used to place the longitudinal slider, which consists of a longitudinal displacement section and a lateral limiting section. The outer side of the lateral limiting section and the inner side of the longitudinal displacement section are both in contact with the side wall of the inner cavity to prevent lateral swaying. The space between the lateral limiting section and the upper wall of the inner cavity is used to install the positioning rod, positioning collar and return spring, making reasonable use of space. The setting of the return spring allows the lateral limiting section to maintain a downward movement trend, so as to facilitate the return and venting in the later stage. The upper end through hole opened at the upper end of the housing allows the longitudinal displacement section to pass through and be embedded in the locking groove of the contact block to achieve lateral limiting of the protective sleeve.

[0023] 4. In this invention, a driving unit is provided to drive the longitudinal displacement segment upward, so that the longitudinal displacement segment can be embedded into the locking groove. The driving unit includes a pipe interface, and the gas injected into the pipe interface can be injected sequentially through the main air passage, the auxiliary air passage and the air passage to push the longitudinal displacement segment upward into the locking groove. The knob on the pipe interface can cut off the pipe interface to prevent gas leakage, thereby improving the stability of the protective sleeve.

[0024] 5. In this invention, the lower support platform can play a supporting role, and the first buffer pad and the second buffer pad provided on the upper surface of the lower support platform can reduce the impact force of the longitudinal slider returning to its original position.

[0025] 6. In this invention, the limiting step serves to further limit the longitudinal slider.

[0026] 7. In this invention, the fixed horizontal block at the upper end of the longitudinal displacement section is fixed by a small screw, and two positioning inserts are respectively set on both sides of the fixed horizontal block; the first displacement groove is provided for the installation of the first extension section and the small spring, and the small spring stably pushes the positioning insert inward; the second displacement groove is provided for the placement of the second extension section and can also play a limiting role, allowing the positioning insert to move laterally toward / away from the fixed horizontal block, and can also play a role in preventing detachment by force; the anti-detachment block on the outside of the positioning insert can be embedded in the anti-detachment groove to further fix the protective sleeve. There is a gap between the bottom of the second displacement groove and the second extension section, forming a sealed movable cavity. Then, gas is injected into the movable cavity by setting a secondary connecting channel and a first air guide channel, thereby pushing the positioning insert outward, so that the anti-detachment block can be embedded into the groove bottom of the anti-detachment groove. In this invention, the gas injected through the pipe interface can not only push the longitudinal displacement segment upward into the embedded locking groove, but also push the positioning block outward so that the anti-detachment block can be embedded into the bottom of the anti-detachment groove; by using a single-end input method, different outputs at both ends are achieved, the structure is optimized, the operation steps are reduced, and the installation / removal of the protective sleeve is very convenient.

[0027] 8. In this invention, when the inner side of the positioning insert abuts against the side wall of the fixed cross block, the cross-sectional width of the movable cavity is consistent with the cross-sectional width of the secondary connecting channel, thereby ensuring the existence of the movable cavity and allowing the gas injected into the secondary connecting channel to smoothly enter the movable cavity. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0029] Figure 2 for Figure 1 Enlarged view of section A;

[0030] Figure 3 for Figure 2 Enlarged view of section B;

[0031] Figure 4 for Figure 3 Enlarged view of section C.

[0032] In the diagram: 11. Base; 12. Upper positioning seat; 13. Mounting slot; 14. Traffic signal light body; 15. Light pole; 161. First longitudinal perforation; 162. Second longitudinal perforation; 21. Hard alloy layer; 22. Elastic buffer layer; 23. Contact block; 24. Locking slot; 241. Anti-detachment slot; 31. Housing; 311. Upper perforation; 312. Limiting step; 32. Lower end cover; 33. First screw; 34. Inner cavity; 41. Longitudinal displacement section; 42. Lateral limiting section; 51. Positioning rod; 52. Second screw; 53. Opening; 54. Lower end Support platform; 541, first buffer pad; 542, second buffer pad; 55, positioning collar; 56, return spring; 61, pipe interface; 611, knob; 62, main air passage; 63, auxiliary air passage; 64, air passage; 71, fixed cross block; 72, small screw; 73, positioning insert; 731, anti-detachment block; 741, first extension section; 742, first displacement groove; 743, small spring; 751, second extension section; 752, second displacement groove; 81, movable cavity; 82, secondary connecting channel; 83, first air passage; 91, positioning protrusion. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] As attached Figures 1 to 4 As shown;

[0035] This embodiment discloses a traffic signal light with a protective mechanism, including a base 11 as a load-bearing structure, an annular upper positioning seat 12 fixedly disposed on the upper end of the base 11, and a protective sleeve detachably disposed on the upper end of the upper positioning seat 12, the protective sleeve being fitted around the outer periphery of the traffic signal light body 14.

[0036] The lower end of the protective sleeve can connect with the upper positioning seat 12. Mounting grooves 13 are provided on both sides of the upper positioning seat 12, and fixing components are fixedly installed within the mounting grooves 13. When the protective sleeve connects with the upper positioning seat 12, the fixing components can stably fix the protective sleeve to the upper end of the upper positioning seat 12. A cylindrical lamp post 15 is fixedly installed at the lower end of the traffic signal light body 14. The protective sleeve is annular, and a first longitudinal through hole 161 is provided inside the protective sleeve. A second longitudinal through hole 162 is provided at the center of the upper positioning seat 12. The lamp post 15 can pass through the first longitudinal through hole 161 and the second longitudinal through hole 162 and extend into the base 11, where it is fixed by threaded engagement. The cross-sectional width of the first longitudinal through hole 161 is consistent with that of the lamp post 15, and the lamp post 15 remains in contact with the inner wall of the first longitudinal through hole 161.

[0037] The protective sleeve consists of an outer hard alloy layer 21 and an inner elastic buffer layer 22; the elastic buffer layer 22 is made of polytetrafluoroethylene or silicone.

[0038] The fixing assembly includes a main housing fixedly installed in the mounting groove 13. The main housing consists of a housing 31 and a lower end cap 32, which are fixed together by a first screw 33. A hollow inner cavity 34 is provided inside the housing, and a longitudinal slider is provided within the inner cavity 34. The longitudinal slider consists of a longitudinal displacement section 41 and a lateral limiting section 42. The lateral limiting section 42 is fixed to the outer side of the lower end of the longitudinal displacement section 41, and both the outer side of the lateral limiting section 42 and the inner side of the longitudinal displacement section 41 are in contact with the sidewall of the inner cavity 34. A longitudinal positioning rod 51 is provided within the inner cavity 34, with its upper end touching the inner cavity 34. The upper wall of 4 is attached to and fixed by the second screw 52. The positioning rod 51 extends longitudinally downward. The transverse limiting section 42 has an opening 53 for the positioning rod 51 to pass through downward. A lower end support platform 54 is provided at the bottom of the inner cavity 34. The lower end support platform 54 is fixed to the upper end of the lower end cover 32. After the positioning rod 51 passes through the opening 53, it will abut against the upper end surface of the lower end support platform 54. A positioning collar 55 is fixedly provided on the upper half of the positioning rod 51. A return spring 56 is compressed between the positioning collar 55 and the transverse limiting section 42. Under the elastic force of the return spring 56, the transverse limiting section 42 maintains the tendency to move downward.

[0039] The upper end of the housing 31 is provided with an upper through hole 311, the position of which corresponds to the longitudinal displacement segment 41; a contact block 23 is fixedly provided at the lower end of the protective sleeve, and a locking groove 24 is provided at the lower end of the contact block 23 for the longitudinal displacement segment 41 to be inserted after passing through the upper through hole 311; a drive unit is provided inside the housing 31 to provide the driving force for the longitudinal displacement segment 41 to move upward.

[0040] The drive unit includes a pipe interface 61 located on the outside of the lower end cover 32. The upper end of the pipe interface 61 is equipped with a knob 611 that can control the internal conduction / cutoff. A main air passage 62 is opened inside the lower end cover 32, and an auxiliary air passage 63 is opened inside the lower end support platform 54. Two air passages 64 are formed between the lower end support platform 54 and the two side walls of the inner cavity 34. The auxiliary air passage 63 is connected to the main air passage 62 and simultaneously connected to the two air passages 64. Both air passages 64 are located below the longitudinal slider, so that the injected gas can push the longitudinal displacement section 41 upward to be embedded into the locking groove 24.

[0041] The upper end surface of the lower support platform 54 is fixedly provided with a first buffer pad 541 and a second buffer pad 542. The first buffer pad 541 and the second buffer pad 542 are used to reduce the impact force of the longitudinal slider returning to its original position. The first buffer pad 541 has a recessed groove inside for the lower end of the positioning rod 51 to extend into.

[0042] The housing 31 has a limiting step 312 fixedly installed on the side wall inside, which abuts against the lateral limiting section 42 to achieve the limiting purpose.

[0043] A fixed horizontal block 71 is provided at the upper end of the longitudinal displacement segment 41, and the fixed horizontal block 71 is fixed to the longitudinal displacement segment 41 by a small screw 72. Two positioning inserts 73 are provided on both sides of the fixed horizontal block 71, and the two positioning inserts 73 slide horizontally on the upper end face of the longitudinal displacement segment 41. A first extension segment 741 is fixedly provided at the lower end of the positioning insert 73. A first displacement groove 742 is opened on the upper end face of the longitudinal displacement segment 41. The first extension segment 741 extends into the first displacement groove 742. A small spring 743 is compressed between the inner wall of the outer side of the first displacement groove 742 and the first extension segment 741. The elastic force of the small spring 743 stably pushes the positioning insert 73 inward.

[0044] Anti-detachment grooves 241 are provided on both sides of the locking groove 24. An anti-detachment block 731 that can be partially embedded into the anti-detachment groove 241 is fixedly provided on the outer end of the positioning insert 73. The anti-detachment block 731 can be embedded into the bottom of the anti-detachment groove 241 to further fix the protective sleeve. A second extension section 751 is fixedly provided on the inner side of the positioning insert 73. A second transverse displacement groove 752 is provided on the side of the fixing horizontal block 71. The second extension section 751 is located in the second displacement groove 752. When the anti-detachment block 731 is embedded into the bottom of the anti-detachment groove 241, the second extension section 751 is still partially located in the second displacement groove 752.

[0045] There is a gap between the bottom of the second shifting groove 752 and the second extension section 751, forming a sealed movable cavity 81. A secondary connecting channel 82 connected to the movable cavity 81 is opened on the fixed cross block 71. A first air guide channel 83 is opened inside the longitudinal shifting section 41. The upper end of the first air guide channel 83 forms a branch to connect with the two secondary connecting channels 82 respectively. The lower end of the first air guide channel 83 is connected to the corresponding air guide passage 64. The gas introduced into the air guide passage 64 can reach the movable cavity 81, thereby pushing the positioning insert 73 outward, so that the anti-detachment block 731 can be embedded into the bottom of the anti-detachment groove 241.

[0046] When the inner side of the positioning insert 73 abuts against the side wall of the fixed horizontal block 71, the cross-sectional width of the movable cavity 81 is consistent with the cross-sectional width of the secondary connecting channel 82.

[0047] The upper end of the upper positioning seat 12 is fixedly provided with a positioning protrusion 91 that can be embedded into the lower end of the protective sleeve.

[0048] This embodiment also discloses a method for using a traffic light with a protective mechanism, including the following steps:

[0049] Step S1: Place the protective cover on the upper positioning seat 12. The positioning protrusion 91 at the upper end of the upper positioning seat 12 is embedded into the lower end of the protective cover for quick positioning.

[0050] Step S2: The external pipeline is connected to the pipe interface 61 and gas is injected. The injected gas passes through the main air channel 62, the auxiliary air channel 63 and the air channel 64, which can push the longitudinal displacement section 41 upward to embed into the locking groove 24, thereby achieving lateral limitation of the protective sleeve. At the same time, the injected gas will also pass through the first air channel 83 and the secondary connecting channel 82 and be injected into the movable cavity 81, which will push the positioning insert 73 outward, so that the anti-detachment block 731 can be embedded into the bottom of the anti-detachment groove 241, thereby achieving longitudinal limitation of the protective sleeve.

[0051] Step S3: After the gas injection is complete, turn the knob 611 to cut off the pipe interface 61 to prevent gas leakage.

[0052] The working principle of this embodiment is as follows:

[0053] When the protective cover needs to be installed, place the protective cover on the upper positioning seat 12. The positioning protrusion 91 at the upper end of the upper positioning seat 12 is embedded into the lower end of the protective cover for quick positioning. The external pipeline is connected to the pipe interface 61 and gas is injected. The injected gas passes through the main air passage 62, the auxiliary air passage 63 and the air passage 64, which can push the longitudinal displacement section 41 upward to embed into the locking groove 24 to achieve lateral limitation of the protective cover. At the same time, the injected gas will also pass through the first air passage 83 and the secondary connecting channel 82 and be injected into the movable cavity 81, which will push the positioning insert 73 outward so that the anti-detachment block 731 can be embedded into the bottom of the anti-detachment groove 241 to achieve longitudinal limitation of the protective cover. After the gas injection is completed, the pipe interface 61 is cut off by rotating the knob 611 to prevent gas leakage. Finally, the lamp post 15 of the traffic signal light body 14 is inserted into the base 11 after passing through the first longitudinal through hole 161 and the second longitudinal through hole 162, and fixed by means of threaded engagement.

[0054] When the protective cover needs to be removed, turn the knob 611 to open the pipe interface 61; the longitudinal slider will return to its original position under the elastic force of the return spring 56, which can squeeze out the gas; the first extension section 741 will return to its original position under the elastic force of the small spring 743, which can also squeeze out the gas, and the gas is squeezed out from the pipe interface 61; at the same time, the return of the longitudinal slider can allow the longitudinal displacement section 41 to disengage from the locking groove 24, and the return of the first extension section 741 can drive the anti-disengagement block 731 to disengage from the anti-disengagement groove 241, thereby making it easy and convenient to remove the protective cover.

[0055] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A traffic signal light with a protective mechanism, characterized in that: It includes a base (11) as a load-bearing structure, an annular upper positioning seat (12) is fixedly provided on the upper end of the base (11), and a protective sleeve is detachably provided on the upper end of the upper positioning seat (12). The protective sleeve is fitted around the outer periphery of the traffic signal light body (14). The lower end of the protective sleeve can connect with the upper positioning seat (12). Mounting grooves (13) are provided on both sides of the upper positioning seat (12), and fixing components are fixedly installed in the mounting grooves (13). When the protective sleeve connects with the upper positioning seat (12), the fixing components can stably fix the protective sleeve to the upper end of the upper positioning seat (12). A cylindrical lamp post (15) is fixedly installed at the lower end of the traffic signal light body (14). The protective sleeve is annular, and the protective sleeve... The sheath has a first longitudinal through hole (161) inside, and a second longitudinal through hole (162) is provided at the center of the upper positioning seat (12). The lamp post (15) can pass through the first longitudinal through hole (161) and the second longitudinal through hole (162) and extend into the base (11) and be fixed by threaded engagement. The first longitudinal through hole (161) has the same cross-sectional width as the lamp post (15), and the lamp post (15) is in contact with the inner wall of the first longitudinal through hole (161). The protective sleeve is composed of an outer hard alloy layer (21) and an inner elastic buffer layer (22); it also includes a fixing component, which includes a main housing fixedly disposed in the mounting groove (13). The main housing is composed of a housing (31) and a lower end cap (32). The housing (31) and the lower end cap (32) are fixed together by a first screw (33). The housing (31) has a hollow inner cavity (34) inside, and a longitudinal slider is provided in the inner cavity (34). The longitudinal slider is composed of a longitudinal displacement section (41) and a transverse limiting section (42). The transverse limiting section (42) is fixed to the outer side of the lower end of the longitudinal displacement section (41), and the outer side of the transverse limiting section (42) and the inner side of the longitudinal displacement section (41) are both in contact with the side wall of the inner cavity (34). A longitudinal positioning rod (51) is provided in the inner cavity (34). The upper end of the positioning rod (51) is attached to the upper wall of the inner cavity (34) and fixed by a second screw (52). The positioning rod (51) extends longitudinally downward. The transverse limiting section (42) has an opening (53) for the positioning rod (51) to pass through downward. A lower support platform (54) is provided at the bottom of the inner cavity (34). The lower support platform (54) is fixed to the upper end of the lower end cover (32). After the positioning rod (51) passes through the opening (53), it will abut against the upper end face of the lower support platform (54). A positioning collar (55) is fixedly provided on the upper half of the positioning rod (51), and a return spring (56) is compressed between the positioning collar (55) and the transverse limiting section (42). Under the elastic force of the return spring (56), the lateral limiting segment (42) maintains the tendency to move downward;The upper end of the housing (31) is provided with an upper end through hole (311), and the position of the upper end through hole (311) corresponds to the longitudinal displacement segment (41); the lower end of the protective sleeve is fixedly provided with a contact block (23), and the lower end of the contact block (23); A locking groove (24) is provided for the longitudinal displacement segment (41) to be inserted after passing through the upper through hole (311); a drive unit is provided in the housing (31) to provide the driving force for the longitudinal displacement segment (41) to move upward.

2. A traffic signal light with a protective mechanism according to claim 1, characterized in that: The drive unit includes a pipe interface (61) located on the outside of the lower end cover (32). The upper end of the pipe interface (61) is provided with a knob (611) that can control the internal conduction / cutoff. A main air passage (62) is provided inside the lower end cover (32), and an auxiliary air passage (63) is provided inside the lower end support platform (54). Two air passages (64) are formed between the lower end support platform (54) and the two side walls of the inner cavity (34). The auxiliary air passage (63) is connected to the main air passage (62) and simultaneously connected to the two air passages (64). Both air passages (64) are located below the longitudinal slider, so that the injected gas can push the longitudinal displacement section (41) upward to be embedded in the locking groove (24).

3. A traffic signal light with a protective mechanism according to claim 1, characterized in that: The upper end surface of the lower support platform (54) is fixedly provided with a first buffer pad (541) and a second buffer pad (542). The first buffer pad (541) and the second buffer pad (542) are used to reduce the impact force of the longitudinal slider returning to its original position. The first buffer pad (541) has a recessed groove inside for the lower end of the positioning rod (51) to extend into.

4. A traffic signal light with a protective mechanism according to claim 1, characterized in that: The inner side wall of the housing (31) is fixedly provided with a limiting step (312) that abuts against the transverse limiting section (42) to achieve the limiting purpose.

5. A traffic signal light with a protective mechanism according to claim 2, characterized in that: A fixing block (71) is provided at the upper end of the longitudinal displacement segment (41), and the fixing block (71) is fixed to the longitudinal displacement segment (41) by a small screw (72); two positioning blocks (73) are provided on both sides of the fixing block (71), and the two positioning blocks (73) slide horizontally on the upper end face of the longitudinal displacement segment (41); a first extension segment (741) is fixedly provided at the lower end of the positioning block (73), and a first displacement groove (742) is opened on the upper end face of the longitudinal displacement segment (41). 41) The first displacement groove (742) is inserted into the first displacement groove (742). A small spring (743) is compressed between the inner wall of the outer side of the first displacement groove (742) and the first extension section (741). The elastic force of the small spring (743) is used to stably push the positioning insert (73). Anti-disengagement grooves (241) are provided on both sides of the locking groove (24). An anti-disengagement block (731) that can be partially embedded into the anti-disengagement groove (241) is fixedly provided on the outer end of the positioning insert (73). The anti-disengagement block (731) can be embedded to abut against the bottom of the anti-disengagement groove (241) to further... The fixed protective sleeve of the step; the inner side of the positioning insert (73) is fixedly provided with a second extension section (751), and the side of the fixed horizontal block (71) is provided with a transverse second displacement groove (752). The second extension section (751) is located in the second displacement groove (752), and when the anti-detachment block (731) is embedded to abut against the bottom of the anti-detachment groove (241), the second extension section (751) is still partially located in the second displacement groove (752); there is a gap between the bottom of the second displacement groove (752) and the second extension section (751), and a sealed movable cavity (8) is formed. 1) The fixed horizontal block (71) is provided with a secondary connecting channel (82) connected to the movable cavity (81); the longitudinal displacement section (41) is provided with a first air guide channel (83), the upper end of the first air guide channel (83) forms a branch to connect with the two secondary connecting channels (82) respectively, and the lower end of the first air guide channel (83) is connected to the corresponding air guide passage (64). The gas introduced into the air guide passage (64) can reach the movable cavity (81) and push the positioning insert (73) outward so that the anti-detachment block (731) can be embedded into the bottom of the anti-detachment groove (241).

6. A traffic signal light with a protective mechanism according to claim 5, characterized in that: When the inner side of the positioning insert (73) abuts against the side wall of the fixed cross block (71), the cross-sectional width of the movable cavity (81) is consistent with the cross-sectional width of the secondary connecting channel (82).

7. A traffic signal light with a protective mechanism according to claim 1, characterized in that: The upper end of the upper positioning seat (12) is fixedly provided with a positioning protrusion (91) that can be embedded into the lower end of the protective sleeve.

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