Integrated vernier pointer

Abstract

The utility model provides an integrated vernier pointer, which comprises a pointer body, the pointer body comprises a shell, a switching power supply and a signal generation unit, a containing cavity for containing the switching power supply and the signal generation unit is arranged in the shell, and the front side and the rear side of the shell are respectively and detachably connected with a sealing cover opposite to the containing cavity. An air pipe is arranged on the front side of the sealing cover, a seat plate is arranged on one side of the shell, and a cooling fan is fixedly arranged on one side of the seat plate. According to the utility model, the front side and the rear side of the shell are provided with the sealing covers opposite to the accommodating cavity, then the front sides of the sealing covers are provided with the air pipes, one side of the shell is connected with the cooling fan through the seat plate, the cooling fan is opposite to one of the air pipes, after the cooling fan is started, airflow is formed in the shell, and the airflow can exhaust hot air in the accommodating cavity; compared with the prior art, the heat dissipation effect is greatly improved, and the switching power supply and the signal generation unit can operate reliably for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile locomotive track position detection equipment, in particular to an integrated vernier pointer. Background Technique

[0002] At present, most of the position detections of large and heavy mobile locomotives adopt a split vernier pointer plus an electrical cabinet. There are certain defects in the stability of this detection method, which brings great risks to unmanned operation and affects the development of enterprises.

[0003] The utility model with the publication number of CN212030362U proposes an integrated vernier pointer, which includes an integrated housing, a cover plate, an electromagnetic coil, a switching power supply, a signal generation unit, and a aviation plug waterproof joint; the electromagnetic coil, the switching power supply, and the signal generation unit are all arranged in the integrated housing, the cover plate is pressed on the integrated housing, the aviation plug waterproof joint is arranged on the integrated housing, the aviation plug waterproof joint is connected to the switching power supply, the switching power supply is connected to the signal generation unit, and the signal generation unit is connected to the electromagnetic coil. The integrated vernier pointer of the utility model integrates a switching power supply and a signal generation unit; solves the problem of signal line loss caused by the long-distance connection between the original vernier pointer and the signal generation unit, improves the stability of electromagnetic signal detection, reduces the fault points, and at the same time eliminates the original electrical cabinet. Moreover, it has good seismic and sealing performance, is safe and reliable, has a simple structure, is easy to install and disassemble, and is convenient to maintain, saving the labor cost of on-site installation.

[0004] However, the above-mentioned prior art still has the following deficiencies in use; the signal generation unit and the switching power supply are arranged in the housing, the signal generation unit and the switching power supply are located in the same cavity, and then a power supply cover plate made of aluminum material for dissipating heat from the signal generation unit and the switching power supply is provided. However, since the cavity where the signal generation unit and the switching power supply are located is in a closed state and generates a large amount of heat during operation, the heat dissipation effect of the power supply cover plate is poor, resulting in a higher working temperature of the signal generation unit and the switching power supply, thereby affecting their normal operation.

[0005] Therefore, the utility model provides an integrated vernier pointer. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an integrated vernier pointer to solve the problems put forward in the above background technique. The utility model has the advantage of better ventilation and heat dissipation effect, so that the vernier pointer can operate reliably.

[0007] To achieve the above object, the utility model is realized through the following technical solutions: An integrated vernier pointer, comprising a pointer body, the pointer body includes a housing, a switching power supply and a signal generating unit, a receiving cavity for accommodating the switching power supply and the signal generating unit is arranged inside the housing, front and rear sides of the housing are respectively detachably connected with covers opposite to the receiving cavity, an air duct is arranged on the front side of the cover, a seat plate is arranged on one side of the housing, a cooling fan is fixedly arranged on one side of the seat plate, and the cooling fan faces the mouth of one of the air ducts.

[0008] Furthermore, ventilation windows are opened on both sides of the housing, and a flange welded to the mouth of the cover and connected to the window by screws is provided.

[0009] Furthermore, a moisture absorption sleeve is nested inside the air duct, and filter cotton is filled inside the moisture absorption sleeve.

[0010] Furthermore, the small end of the moisture absorption sleeve faces the inner cavity of the air duct.

[0011] Furthermore, an air outlet cover is arranged on the cooling fan, and a rubber sleeve sealingly matched with the air outlet cover is sleeved on the mouth of the air duct.

[0012] Furthermore, a support tube is rotatably connected to one side of the housing, the free end of the support tube is fixedly connected to the middle of one side of the seat plate, the cooling fan is arranged at one end of the seat plate, and when the seat plate rotates, the cooling fan thereon can face the air ducts on the front and rear sides of the housing in turn.

[0013] Furthermore, a wire passing hole located outside the housing is opened on the outer peripheral wall of the support tube, and the wire passing hole communicates with the inner cavity of the support tube.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. In the utility model, covers opposite to the receiving cavity are arranged on the front and rear sides of the housing, then an air duct is arranged on the front side of the cover, a cooling fan is connected to one side of the housing through a seat plate, the cooling fan faces one of the air ducts, after the cooling fan starts, an air flow is formed inside the housing, and the air flow can discharge the hot air in the receiving cavity. Compared with the prior art, the heat dissipation effect is greatly improved, so that the switching power supply and the signal generating unit can operate reliably for a long time.

[0016] 2. In the utility model, a moisture absorption sleeve and filter cotton located inside the moisture absorption sleeve are arranged inside the air duct, so that the humid air containing dust and impurities in the outside world enters the receiving cavity after being filtered and dehumidified, which has the advantages of dust prevention and moisture prevention.

[0017] 3. In the present utility model, the seat plate is rotatably connected to the outer shell. When the seat plate rotates, it can drive the cooling fan thereon to align with other air ducts. This kind of setting facilitates controlling the air flow direction in the air ducts on both sides of the outer shell, and thus has the function of cleaning the blockage on the outer surface of the filter cotton. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic structural diagram of an integral vernier pointer of the present utility model;

[0019] Figure 2 is Figure 1 schematic diagram after explosion and unfolding;

[0020] Figure 3 is Figure 2 top view of;

[0021] In the figure: 1. Outer shell; 11. Accommodating cavity; 12. Window; 2. Switching power supply; 3. Signal generating unit; 4. Sealing cover; 41. Flange; 5. Air duct; 6. Seat plate; 7. Filter cotton; 8. Cooling fan; 81. Air outlet hood; 9. Rubber sleeve; 101. Support pipe; 1011. Wire passing hole; 102. Moisture absorption sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: an integral vernier pointer, including a pointer body, the pointer body includes an outer shell 1, a switching power supply 2 and a signal generating unit 3. An accommodating cavity 11 for accommodating the switching power supply 2 and the signal generating unit 3 is arranged in the outer shell 1. In the prior art, the accommodating cavity 11 is a closed cavity, and a large amount of heat will be generated when the switching power supply 2 and the signal generating unit 3 therein are operating. The heat causes the temperature in the accommodating cavity 11 to rise, and when the temperature is too high, it will affect the normal operation of the switching power supply 2 and the signal generating unit 3.

[0024] In this technical solution, sealing covers 4 opposite to the accommodating cavity 11 are detachably connected to the front and rear sides of the outer shell 1 respectively. Specifically, ventilation windows 12 can be opened on both sides of the outer shell 1, and a flange 41 welded to the mouth of the sealing cover 4 and connected to the window 12 by screws is provided. An air duct 5 is arranged on the front side of the sealing cover 4, and the air duct 5 is communicated with the accommodating cavity 11. When the air duct 5 on the front side of the outer shell 1 intakes air, the air duct 5 on the rear side of the outer shell 1 will exhaust air, and its air flow will discharge the hot air in the accommodating cavity 11. Among them, during use, a bracket is fixedly welded to the rear wall in the outer shell 1, and the bracket is fixedly connected to the switching power supply 2 and the signal generating unit 3.

[0025] On one side of the housing 1, there is a seat plate 6. The seat plate 6 is located in the middle of the covers 4 on the front and back sides of the housing 1. On one side of the seat plate 6, a cooling fan 8 is fixedly arranged. The cooling fan 8 faces the mouth of one of the air ducts 5. When the cooling fan 8 starts, it will convey fresh air into one of the air ducts 5. At this time, the air in the accommodation cavity 11 is in an accelerated flow state, and thus the heat generated by the switching power supply 2 and the signal generation unit 3 can be quickly discharged.

[0026] In this embodiment, a moisture absorption sleeve 102 is nested in the air duct 5. The moisture absorption sleeve 102 is filled with filter cotton 7. The moisture absorption sleeve 102 is made of water-absorbing resin, and its function is to absorb the moisture in the air entering the air duct 5, playing a moisture-proof role. The filter cotton 7 can be ventilation sponge, and its function is to prevent dust from entering the air duct 5.

[0027] Further, the small end of the moisture absorption sleeve 102 faces the inner cavity of the air duct 5. This setting can increase the contact area between the air flow and the moisture absorption sleeve 102 and improve the moisture absorption effect.

[0028] In this embodiment, an air outlet hood 81 is arranged on the cooling fan 8. A rubber sleeve 9 that is hermetically fitted with the air outlet hood 81 is sleeved on the mouth of the air duct 5. That is to say, when the air outlet hood 81 is aligned with the mouth of the air duct 5, it will press against the front end face of the rubber sleeve 9. At this time, the air outlet hood 81 and the air duct 5 are in a sealed docking state. This setting can increase the air flow rate entering the air duct 5.

[0029] Further, a support pipe 101 is rotatably connected to one side of the housing 1. Specifically, during implementation, a positioning sleeve sleeved outside the support pipe 101 can be fixedly arranged on one side of the housing 1. The free end of the support pipe 101 is fixedly connected to the middle of one side of the seat plate 6. The cooling fan 8 is arranged at one end of the seat plate 6. When the seat plate 6 rotates, the cooling fan 8 thereon can face the air ducts 5 on the front and back sides of the housing 1 in turn. When the cooling fan 8 faces different air ducts 5, the flow direction of the air in the accommodation cavity 11 is changed, and at the same time, the blockage on the outer surface of the filter cotton 7 that is not opposite to the cooling fan 8 can be blown away, having a function of clearing blockage.

[0030] In this embodiment, a wire passing hole 1011 located outside the housing 1 is opened on the outer peripheral wall of the support pipe 101. The wire passing hole 1011 communicates with the inner cavity of the support pipe 101. The inner cavity of the support pipe 101 and the wire passing hole 1011 are used for wiring, facilitating the connection of the cooling fan 8 to the switching power supply 2 through wires.

[0031] Working principle: When the cursor pointer operates, the switching power supply 2 supplies power to the cooling fan 8. The cooling fan 8 blows air into one of the air ducts 5, and the air flow is discharged from the other air duct 5 after passing through the accommodating cavity 11. During the flowing process of the air flow, the heat generated by the switching power supply 2 and the signal generating unit 3 is discharged. During this process, due to the dehumidifying and filtering effects of the moisture absorption sleeve 102 and the filter cotton 7, the air entering and leaving the container cavity is in a clean state. When the filter cotton 7 is blocked, manually rotate the seat plate 6 to make the cooling fan 8 face the other air ducts 5. At this time, the air flow direction of each air duct 5 can be changed, and thus the blockage outside the filter cotton 7 can be gradually blown away.

[0032] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An integrated vernier pointer, comprising a pointer body, the pointer body including a housing (1), a switching power supply (2) and a signal generation unit (3), wherein a receiving cavity (11) for receiving the switching power supply (2) and the signal generation unit (3) is provided in the housing (1), and it is characterized in that, The front and back sides of the outer shell (1) are respectively detachably connected with covers (4) opposite to the accommodating cavity (11). An air duct (5) is arranged on the front side of the cover (4). A seat plate (6) is arranged on one side of the outer shell (1). A heat dissipation fan (8) is fixedly arranged on one side of the seat plate (6), and the heat dissipation fan (8) is opposite to the mouth of one of the air ducts (5).

2. The one-piece vernier pointer according to claim 1, characterized in that: Ventilation windows (12) are formed on both sides of the outer shell (1). A flange (41) which is welded to the mouth of the cover (4) and is connected to the window (12) by screws is provided.

3. An integrated vernier pointer according to claim 1, characterized in that: A moisture absorption sleeve (102) is nested in the air duct (5), and filter cotton (7) is filled in the moisture absorption sleeve (102).

4. The one-piece vernier pointer according to claim 3, characterized in that: The small end of the moisture absorption sleeve (102) faces the inner cavity of the air duct (5).

5. An integrated vernier pointer according to claim 1, characterized in that: An air outlet hood (81) is arranged on the heat dissipation fan (8), and a rubber sleeve (9) which is hermetically matched with the air outlet hood (81) is sleeved on the mouth of the air duct (5).

6. The one-piece vernier pointer according to claim 5, characterized in that: A support pipe (101) is rotatably connected to one side of the outer shell (1). The free end of the support pipe (101) is fixedly connected to the middle of one side of the seat plate (6). The heat dissipation fan (8) is arranged at one end of the seat plate (6). When the seat plate (6) rotates, the heat dissipation fan (8) thereon can be alternately opposite to the air ducts (5) on the front and back sides of the outer shell (1).

7. An integrated vernier pointer according to claim 6, characterized in that: A wire passing hole (1011) located outside the outer shell (1) is formed on the outer peripheral wall of the support pipe (101), and the wire passing hole (1011) communicates with the inner cavity of the support pipe (101).

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