Detection connecting rod for rail transit detection

Abstract

The utility model relates to the field of rail transit, and discloses a detection connecting rod for rail transit detection, which comprises a bottom plate, a limiting structure is arranged at the center of the upper end face of the bottom plate close to the front side edge, a connecting rod structure is arranged at the center of the front side of the bottom plate, and the limiting structure comprises a connecting plate and a placing groove. The lower end of the connecting plate penetrates through the upper end face of the bottom plate and communicates with the interior of the containing groove, storage grooves are formed in the positions, located on the two sides of the connecting plate, of the upper end face of the bottom plate correspondingly, and springs are arranged in the two storage grooves correspondingly. The upper ends and the lower ends of the two springs are fixedly connected to the lower end face of a connecting plate and the lower inner walls of the two storage grooves correspondingly, and an inserting plate is fixedly connected to the center of the lower end face of the connecting plate. According to the utility model, the connecting rod structure is arranged, and the gear is meshed and matched with the two racks, so that the connecting piece is higher in stability when being adjusted, and the possibility of dislocation and slipping is not easy to occur.

Description

Technical Field

[0001] The utility model relates to the field of rail transportation, in particular to a detection connecting rod for rail transportation detection. Background Art

[0002] Rail transit has appeared in cities as public transportation for a long time and plays an increasingly important role. The structural morphological parameters and apparent disease detection of tunnels in the field of rail transit are becoming increasingly important to ensure the safe operation of existing lines. Currently, manual inspection is mainly adopted, and some tunnel structure inspections are also carried out based on the modification of track inspection trolleys. The main function of the connecting rod structure is to connect with other equipment to achieve traction and dragging.

[0003] However, the existing connecting rod structure still has some shortcomings and areas for improvement during actual use. The existing connecting rod cannot be adjusted in length during use, and cannot be well fixed after the adjustment is completed, which leads to easy collision and friction with the side wall during use, and the connection cannot be fixed and restricted when connected to other equipment. Therefore, technicians in this field provide a detection connecting rod for rail transit detection to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a detection connecting rod for rail transit detection is proposed. By setting a limiting structure and a connecting rod structure, when in use, the connecting plate is lifted, and the upward force is used to stretch the springs inside the two storage grooves upward, so that the plug plate inserted in the slot is pulled out and then cooperated with the connecting rod structure to adjust the length between the connecting rod structure and the bottom plate according to the needs of actual use, and the limiting structure can be used to well limit the position after the adjustment is completed, and ensure stability during use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a detection connecting rod for rail transit detection, comprising a bottom plate, a limiting structure is arranged at the center of the upper end surface of the bottom plate near the front side edge, a connecting rod structure is arranged at the front center of the bottom plate, the limiting structure comprises a connecting plate and a placement slot, the lower end of the connecting plate passes through the upper end surface of the bottom plate and passes into the placement slot, and a receiving slot is respectively arranged on the upper end surface of the bottom plate on both sides of the connecting plate, and a spring is respectively arranged inside the two receiving slots, and the upper and lower ends of the two springs are respectively fixedly connected to the lower end surface of the connecting plate and the lower inner walls of the two receiving slots, and a plug plate is fixedly connected at the center of the lower end surface of the connecting plate, and the lower end of the plug plate passes through the upper end surface of the bottom plate and passes into the placement slot, and a slot is arranged at the center of the lower inner wall of the placement slot, and a first connecting slot is respectively arranged on the front and rear inner side walls of the placement slot, and a rack is respectively fixedly connected to the upper and lower inner side walls of the two first connecting slots;

[0006] Through the above technical solution, when in use, by lifting the connecting plate, the upward force is used to stretch the springs inside the two storage slots upward, so that the plug-in plate inserted in the slot is pulled out and then cooperated with the connecting rod structure to adjust the length between the connecting rod structure and the bottom plate according to the actual needs of use.

[0007] Further, the connecting rod structure includes a connecting piece, a plurality of jacks are arranged on the upper end surface of the connecting piece, a second connecting groove is arranged at the center of the front side wall of the connecting piece, the second connecting groove penetrates the front side wall of the connecting piece and leads to the rear end, the lower ends of the plurality of jacks respectively penetrate the upper end surface of the connecting piece and lead to the inside of the second connecting groove, a first connecting shaft is arranged at the center of the front side wall of the connecting piece near one side edge, the rear end of the first connecting shaft penetrates the front side wall of the connecting piece and leads to the rear end, the front and rear ends of the first connecting shaft are respectively rotatably connected with gears, and the two gears are respectively meshed with the racks on the upper and lower inner side walls of the two first connecting grooves, and two limiting structures are arranged on the upper inner wall of the second connecting groove;

[0008] Through the above technical solution, the meshing cooperation between the gear and the two racks is utilized to make the connecting piece more stable when being adjusted, and it is less likely to be misaligned and slip.

[0009] Further, the limiting structure includes two connecting blocks, the upper ends of the two connecting blocks are respectively fixedly connected to the upper inner wall of the second connecting groove, a baffle is arranged between the two connecting blocks, the center of the front and rear side walls of the baffle are respectively fixedly connected to the second connecting shaft near the upper end, the other ends of the two second connecting shafts are respectively rotatably connected to one side wall of the two connecting blocks, and the center of one side wall of the baffle is fixedly connected to a limiting block near the upper end;

[0010] Through the above technical solution, the baffle and the limiting block cooperate during use so that the baffle can only be moved in one direction, so that the overall connection can be more stable when connected to other devices.

[0011] Furthermore, the size of the plug board and the size of the slot are adapted to each other;

[0012] Through the above technical solution, when the plug board is lowered, it can achieve better limiting and fixing effects by cooperating with the slot.

[0013] Further, the baffle is L-shaped;

[0014] Through the above technical solution, the L-shape can achieve better rotation and restriction.

[0015] Furthermore, the height of the baffle is smaller than the height of the second connecting groove;

[0016] Through the above technical solution, the baffle can rotate inside the second connecting groove.

[0017] Furthermore, a handle is fixedly connected to the center of the upper end surface of the connecting plate;

[0018] The above technical solution makes it easy to pull and release the restriction structure.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, by setting a limiting structure, when in use, by lifting the connecting plate, the upward force is used to stretch the springs inside the two storage slots upward, so that the plug-in plate inserted in the slot is pulled out and then cooperated with the connecting rod structure to adjust the length between the connecting rod structure and the bottom plate according to the actual needs of use. The position after adjustment is well limited and the stability during use is guaranteed.

[0021] 2. In the present invention, by providing a connecting rod structure and utilizing the meshing cooperation between the gear and the two racks, the connection piece is made more stable during adjustment and is less likely to be misaligned or slip.

[0022] 3. In the utility model, by setting a limit structure, the baffle and the limit block cooperate when in use, so that the baffle can only be moved in one direction, so that the overall connection can be more stable when connected with other equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an isometric view of a detection connecting rod for rail transit detection proposed by the utility model;

[0024] Figure 2This is a top view of a detection connecting rod for rail transit detection proposed by the utility model;

[0025] Figure 3 This is a front view of a connecting piece in a detection connecting rod for rail transit detection proposed by the utility model;

[0026] Figure 4 for Figure 2 Sectional view in the AA direction;

[0027] Figure 5 This is an isometric view of a baffle in a detection connecting rod for rail transit detection proposed by the utility model;

[0028] Figure 6 for Figure 4 A magnified schematic diagram of center A.

[0029] Legend:

[0030] 1. Bottom plate; 2. Limiting structure; 201. Placement slot; 202. Handle; 203. Connecting plate; 204. Inserting plate; 205. Slot; 206. Spring; 207. Storage slot; 208. First connecting slot; 209. Rack; 3. Connecting rod structure; 301. Socket; 302. Connecting piece; 303. First connecting shaft; 304. Gear; 305. Second connecting slot; 306. Connecting block; 307. Baffle; 308. Second connecting shaft; 309. Limiting block. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-6, an embodiment provided by the utility model: a detection connecting rod for rail transit detection, comprising a bottom plate 1, a limiting structure 2 is arranged at the front edge of the center of the upper end surface of the bottom plate 1, a connecting rod structure 3 is arranged at the front center of the bottom plate 1, the limiting structure 2 comprises a connecting plate 203 and a placement groove 201, the lower end of the connecting plate 203 passes through the upper end surface of the bottom plate 1 and passes into the inside of the placement groove 201, and receiving grooves 207 are respectively arranged on the upper end surfaces of the bottom plate 1 on both sides of the connecting plate 203, and springs 206 are respectively arranged inside the two receiving grooves 207, and the upper and lower ends of the two springs 206 are respectively fixedly connected to the lower end surface of the connecting plate 203 and the lower inner walls of the two receiving grooves 207, and the connecting plate 203 An insert plate 204 is fixedly connected at the center of the lower end surface, and the lower end of the insert plate 204 passes through the upper end surface of the base plate 1 and passes into the placement groove 201. A slot 205 is provided at the center of the lower inner wall of the placement groove 201, and first connecting grooves 208 are respectively provided on the front and rear inner walls of the placement groove 201. Racks 209 are respectively fixedly connected to the upper and lower inner walls of the two first connecting grooves 208. When in use, the connecting plate 203 is lifted up and the upward force is used to stretch the springs 206 inside the two storage grooves 207 upward, so that the insert plate 204 inserted in the slot 205 is pulled out and then cooperated with the connecting rod structure 3 to adjust the length between the connecting rod structure 3 and the base plate 1 according to the actual needs of use.

[0033] The connecting rod structure 3 includes a connecting member 302, a plurality of jacks 301 are arranged on the upper end surface of the connecting member 302, a second connecting groove 305 is arranged at the center of the front side wall of the connecting member 302, the second connecting groove 305 penetrates the front side wall of the connecting member 302 and leads to the rear end, the lower ends of the plurality of jacks 301 respectively penetrate the upper end surface of the connecting member 302 and lead to the inside of the second connecting groove 305, a first connecting shaft 303 is arranged at the center of the front side wall of the connecting member 302 near one side edge, the rear end of the first connecting shaft 303 penetrates the connecting member 30 2 and extends to the rear end, the front and rear ends of the first connecting shaft 303 are rotatably connected with gears 304, and the two gears 304 are respectively meshed with the racks 209 on the upper and lower inner walls of the two first connecting grooves 208, and two limiting structures are arranged on the upper inner wall of the second connecting groove 305. The meshing cooperation between the gears 304 and the two racks 209 makes the connecting member 302 more stable when adjusting, and is not prone to misalignment and slipping, and is more stable when the friction force is increased to move the position.

[0034] The limiting structure includes two connecting blocks 306, the upper ends of the two connecting blocks 306 are respectively fixedly connected to the upper inner wall of the second connecting groove 305, a baffle 307 is arranged between the two connecting blocks 306, and the second connecting shafts 308 are respectively fixedly connected to the center of the front and rear side walls of the baffle 307 near the upper end, and the other ends of the two second connecting shafts 308 are respectively rotatably connected to one side wall of the two connecting blocks 306, and a limiting block 309 is fixedly connected to the center of the upper end of one side wall of the baffle 307. When in use, the baffle 307 and the limiting block 309 are used to cooperate so that the baffle 307 can only be moved in one direction, so that the overall connection can be more stable when connected with other equipment, and the connecting rod at the connection can be well limited and blocked.

[0035] The size of the plug plate 204 matches that of the slot 205 . The baffle plate 307 is L-shaped. The height of the baffle plate 307 is smaller than that of the second connection slot 305 . The handle 202 is fixedly connected to the center of the upper end surface of the connection plate 203 .

[0036] Working principle: The utility model is a detection connecting rod for rail transit detection. When in use, the connecting plate 203 is lifted up and the upward force is used to stretch the springs 206 inside the two receiving grooves 207 upward, so that the plug plate 204 inserted in the slot 205 is pulled out and then cooperated with the connecting rod structure 3 to adjust the length between the connecting rod structure 3 and the bottom plate 1 according to the actual needs of use. The meshing cooperation between the gear 304 and the two racks 209 makes the connecting member 302 more stable during adjustment, less likely to be misaligned and slipping, and more stable when the friction force is increased and the moving position is moved. Through the cooperation of the baffle 307 and the limiting block 309 in the limiting structure, the baffle 307 can only be moved in one direction, so that the overall connection can be more stable when connected with other equipment, and the connecting rod at the connection can be well limited and blocked.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection connecting rod for rail transit detection, comprising a bottom plate (1), characterized in that: A limiting structure (2) is provided at the center of the upper end surface of the bottom plate (1) near the front edge, and a connecting rod structure (3) is provided at the center of the front side of the bottom plate (1). The limiting structure (2) comprises a connecting plate (203) and a placement groove (201). The lower end of the connecting plate (203) passes through the upper end surface of the bottom plate (1) and is connected to the inside of the placement groove (201). Receiving grooves (207) are respectively provided on the upper end surfaces of the bottom plate (1) on both sides of the connecting plate (203). Springs (206) are respectively provided inside the two receiving grooves (207). The upper and lower ends of the two springs (206) are respectively The connecting plate (203) is fixedly connected to the lower end surface of the connecting plate (203) and the lower inner walls of the two receiving grooves (207); the center of the lower end surface of the connecting plate (203) is fixedly connected to an inserting plate (204); the lower end of the inserting plate (204) passes through the upper end surface of the bottom plate (1) and leads to the interior of the placement groove (201); a slot (205) is provided at the center of the lower inner wall of the placement groove (201); the front and rear inner walls of the placement groove (201) are respectively provided with first connecting grooves (208); the upper and lower inner walls of the two first connecting grooves (208) are respectively fixedly connected to racks (209).

2. A detection connecting rod for rail transit detection according to claim 1, characterized in that: The connecting rod structure (3) comprises a connecting piece (302), a plurality of insertion holes (301) are arranged on the upper end surface of the connecting piece (302), a second connecting groove (305) is arranged at the center of the front side wall of the connecting piece (302), the second connecting groove (305) penetrates the front side wall of the connecting piece (302) and leads to the rear end, the lower ends of the plurality of insertion holes (301) respectively penetrate the upper end surface of the connecting piece (302) and lead to the interior of the second connecting groove (305), and the connecting piece (302) A first connecting shaft (303) is arranged at the center of the front side wall near one side edge, the rear end of the first connecting shaft (303) passes through the front side wall of the connecting member (302) and reaches the rear end, the front and rear ends of the first connecting shaft (303) are rotatably connected with gears (304), and the two gears (304) are respectively meshed with racks (209) on the upper and lower inner walls of the two first connecting grooves (208), and two limiting structures are arranged on the upper inner wall of the second connecting groove (305).

3. A detection connecting rod for rail transit detection according to claim 2, characterized in that: The limiting structure comprises two connecting blocks (306), the upper ends of the two connecting blocks (306) are respectively fixedly connected to the upper inner wall of the second connecting groove (305), a baffle (307) is arranged between the two connecting blocks (306), the center of the front and rear side walls of the baffle (307) are respectively fixedly connected to the second connecting shaft (308) near the upper end, the other ends of the two second connecting shafts (308) are respectively rotatably connected to one side wall of the two connecting blocks (306), and a limiting block (309) is fixedly connected to the center of the side wall of the baffle (307) near the upper end.

4. A detection connecting rod for rail transit detection according to claim 1, characterized in that: The size of the plug board (204) and the size of the slot (205) are adapted to each other.

5. The detection connecting rod for rail transit detection according to claim 3, characterized in that: The baffle (307) is in an L-shape.

6. The detection connecting rod for rail transit detection according to claim 3, characterized in that: The height of the baffle (307) is smaller than the height of the second connecting groove (305).

7. The detection connecting rod for rail transit detection according to claim 1, characterized in that: A handle (202) is fixedly connected to the center of the upper end surface of the connecting plate (203).

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