Rack type manual switch device

Abstract

The utility model discloses a rack type manual switch device. The switch device comprises a rack unit, a gear unit and a worm unit, the rack is used for acting under the driving of the gear so as to drive the switch rail to be far away from or close to the stock rail; the worm is used for driving the worm gear to rotate through external force provided by the wrench so that the worm gear can drive the gear to rotate. The switch device directly drives the switch rail to move through the gear-rack connecting rod, and the transmission structure is simple. Locking of the switch mechanism is achieved through a worm and gear structure, and an additional locking structure does not need to be provided. The gear-rack connecting rod, the worm gear and the worm can be assembled in the box body in advance, the structure is simple and compact, the occupied space is small, and on-site replacement is convenient.

Description

Technical Field

[0001] This utility model relates to the field of railway equipment technology, and in particular to a rack and pinion manual switch with a simple structure that is easy to disassemble and install. Background Technology

[0002] A turnout is a switch that allows locomotives and rolling stock to enter or cross a track. A switch controls the opening or closing of the track. Manual switches are suitable for use in small railway construction in mines, forest farms, ports, and other similar locations. They are a type of switch tool suitable for maintenance and repair work on railway sleeper sections.

[0003] Existing manual track switches typically consist of a turnout connector, tie rod, connecting rod, switch equipment, and locking mechanism. However, these manual track switches have numerous connecting components, occupy a large space, and are relatively difficult to replace due to limited track maintenance windows. Utility Model Content

[0004] This utility model provides a rack and pinion manual switch.

[0005] This utility model provides the following solution:

[0006] A rack and pinion manual switch includes:

[0007] The rack unit includes a rack link and two connector irons that are connected to the two ends of the rack link in a one-to-one correspondence; the outer ends of the two connector irons are respectively used to connect to the two switch rails in a one-to-one correspondence.

[0008] A gear unit, comprising a gear and a worm gear connected coaxially, wherein the gear meshes with the rack and pinion;

[0009] A worm gear unit, comprising a worm and a wrench connected to the worm, wherein the worm is connected to the worm wheel;

[0010] The rack and pinion linkage is used to move under the drive of the gear, so as to move the tip rail away from or closer to the base rail; the worm gear is used to drive the worm wheel to rotate by the external force provided by the wrench, so that the worm wheel drives the gear to rotate.

[0011] Preferably, the rack and pinion, the gear unit, and the worm gear unit are all housed in the same housing, and both ends of the rack and pinion extend to the outside of the housing to connect with the two connecting iron pieces.

[0012] Preferably, the bottom of the housing is provided with bolt holes, which are used to connect the housing to the forklift sleeper by bolts.

[0013] Preferably, the connector iron is connected to the rack connecting rod and the switch rail by bolts.

[0014] Preferably, the worm gear is a worm gear with a self-locking function.

[0015] According to the specific embodiments provided by this utility model, the following technical effects are disclosed:

[0016] This invention provides a rack-and-pinion manual switch. In one implementation, the switch includes a rack unit comprising a rack and two connecting iron pieces corresponding to the two ends of a rack connecting rod. The outer ends of the two connecting iron pieces are respectively used to connect to two switch rails. A gear unit includes a gear and a worm gear coaxially connected, the gear meshing with the rack connecting rod. A worm unit includes a worm and a wrench connected to the worm, the worm engaging with the worm wheel. The rack connecting rod is driven by the gear to move the switch rail away from or towards the base rail. The worm, through the external force provided by the wrench, drives the worm wheel to rotate, causing the worm wheel to drive the gear. This switch directly moves the switch rail via a gear-rack connecting rod, resulting in a simple transmission structure. Locking of the switch mechanism is achieved using a worm wheel and worm gear structure, eliminating the need for an additional locking structure. The gear-rack connecting rod and worm gear can be pre-assembled into the housing, resulting in a simple and compact structure that occupies little space and is easy to replace on-site.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a rack and pinion manual switch provided in an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the gear and rack meshing structure provided in an embodiment of the present invention.

[0021] In the diagram: 1. Connector iron; 2. Rack and pinion rod; 3. Shaft; 4. Gear; 5. Worm gear; 6. Worm; 7. Wrench; 8. Switch rail. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0023] Example

[0024] See Figure 1 , Figure 2 This invention provides a rack-and-pinion manual switch, such as... Figure 1 , Figure 2 As shown, the switch may include:

[0025] The rack unit includes a rack link 2 and two connector irons 1 that are connected to the two ends of the rack link 2 respectively; the outer ends of the two connector irons 1 are respectively used to connect to the two point rails 8 respectively.

[0026] The gear unit includes a gear 4 and a worm gear 5 connected coaxially, and the gear 4 is meshed with the rack and pinion 2.

[0027] The worm gear unit includes a worm 6 and a wrench 7 connected to the worm 6, wherein the worm 6 is connected to the worm wheel 5.

[0028] The rack and pinion 2 is used to move under the drive of the gear so as to move the tip rail 8 away from or closer to the base rail; the worm gear 6 is used to drive the worm wheel 5 to rotate by the external force provided by the wrench 7 so that the worm wheel 5 drives the gear 4 to rotate.

[0029] The rack-and-pinion manual switch provided in this application uses a worm gear mechanism as the power output component. It drives the rack via gears, which in turn moves the connecting iron connected to the rack. The connecting iron then moves the corresponding switch rail away from or towards the corresponding stock rail, thus achieving the purpose of manually changing the train's direction at the switch. Furthermore, this manual switch has few components, making it easy to disassemble and install.

[0030] To further improve the ease of installation of the rack-and-pinion manual switch, this application may also provide that the rack connecting rod, the gear unit, and the worm gear unit are all housed in the same housing (not shown in the figure), and the two ends of the rack connecting rod extend to the outside of the housing to connect with the two connecting iron pieces.

[0031] In a specific implementation, the bottom of the housing is provided with bolt holes, which are used to connect the housing to the fork sleeper via bolts.

[0032] Furthermore, the connector 1 is connected to the rack and pinion 2 and the switch rail 8 by bolts. The worm gear 6 is a worm gear with a self-locking function.

[0033] The following provides a detailed description of the connection methods and usage of the various components of the rack-and-pinion manual switch provided in this application.

[0034] The connector iron 1 has through holes on both sides for bolt connection with the switch rail 8; the right side has a groove and a through hole for bolt connection with the rack and pinion rod 2. The rack and pinion rod 2 has through holes on both sides for bolt connection with two connector irons 1; the rack and pinion rod 2 has a rack structure in the middle for gear-rack engagement with gear 4. The shaft has two keyways for connection and transmission with gear 4 and worm gear 5 respectively. Gear 4 has a slot for key connection with shaft 3; its outer circumference is a gear structure for gear-rack engagement with rack and pinion rod 2. Worm gear 5 has a slot for key connection with shaft 3; its outer circumference is a worm gear structure for worm gear engagement with worm 6, providing a self-locking function. Worm 6 has a worm structure for worm gear engagement with worm gear 5; when the wrench 7 is manually rotated to move the switch rail to a tight fit, the worm gear locks it; its end has a keyway for mounting the wrench 7. The wrench 7 has a slot for key connection with worm 6. The switch rail 8 has through holes on its web for bolt connection with the connector iron 1.

[0035] Before use, assemble the rack and pinion 2, shaft 3, gear 4, worm gear 5, worm 6, and wrench 7 into the housing. The bottom of the housing has bolt holes, allowing it to be bolted to the switch block near the switch. When replacing the switch, first connect the connector iron to the switch rail bolt, then connect the housing to the connector iron bolt through the through hole in the rack and pinion, and finally bolt the housing to the switch block. Replacement is convenient.

[0036] In summary, the rack and pinion manual switch provided in this application directly drives the point rail displacement via a gear-rack connecting rod, resulting in a simple transmission structure. Locking of the switch mechanism is achieved using a worm gear structure, eliminating the need for an additional locking mechanism. The gear-rack connecting rod and worm gear can be pre-assembled into the housing, resulting in a simple and compact structure, small footprint, and convenient on-site replacement.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A rack-and-pinion manual switch, characterized in that, include: The rack unit includes a rack link and two connector irons that are connected to the two ends of the rack link in a one-to-one correspondence; the outer ends of the two connector irons are respectively used to connect to the two switch rails in a one-to-one correspondence. A gear unit, comprising a gear and a worm gear connected coaxially, wherein the gear meshes with the rack and pinion; A worm gear unit, comprising a worm and a wrench connected to the worm, wherein the worm is connected to the worm wheel; The rack and pinion linkage is used to move under the drive of the gear, so as to move the tip rail away from or closer to the base rail; the worm gear is used to drive the worm wheel to rotate by the external force provided by the wrench, so that the worm wheel drives the gear to rotate.

2. The rack-and-pinion manual switch according to claim 1, characterized in that, The rack and pinion, the gear unit, and the worm gear unit are all housed in the same housing. The two ends of the rack and pinion extend to the outside of the housing to connect with the two connecting iron pieces.

3. The rack-and-pinion manual switch according to claim 2, characterized in that, The bottom of the housing is provided with bolt holes, which are used to connect the housing to the fork sleeper with bolts.

4. The rack-and-pinion manual switch according to claim 1, characterized in that, The connector iron is connected to the rack connecting rod and the switch rail by bolts.

5. The rack-and-pinion manual switch according to claim 1, characterized in that, The worm gear is a worm gear with a self-locking function.

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