ZD type turnout installation device fastening device

Abstract

The utility model discloses a kind of ZD type turnout mounting device quick fastening tool, it is related to turnout installation tool technical field.The structure includes tool seat, the support anti-swing support installed on tool seat, one driving gear rotatingly installed in tool seat, two driven gears for transmission and an open external gear disc;Two driven gears are symmetrically arranged about the line of driving gear and the line of open external gear disc;Two driven gears are engaged transmission with driving gear;Open external gear disc is engaged transmission with two driven gears.The utility model is designed by gear transmission and open external gear disc, realize screw quick fastening, greatly improve construction efficiency;Support anti-swing support effectively reduces reaction force deflection, reduces operating intensity;Modularization regular hexagon through-hole is adapted to multiple specifications screw, and general-purpose is enhanced;Overall structure is compact, and operation is stable, solve the problem of low efficiency, high labor intensity of traditional tool, suitable for the maintenance operation of railway turnout dense area.

Description

Technical Field

[0001] This utility model belongs to the technical field of turnout installation tools, and in particular relates to a ZD type turnout installation device with a quick fastening fixture. Background Technology

[0002] During the installation and maintenance of railway turnouts, the large screws fixing the operating rod and tip rod of the ZD type turnout installation device are mounted on a long threaded rod. Due to the limited space for these screws, when tightening them with a 450mm adjustable wrench, the wrench can only be rotated 30-40 degrees each time before needing to be changed. This can consume a significant amount of time when time is tight during construction. In scenarios where construction time is limited or multiple turnouts need to be handled simultaneously, this inefficient work mode can become a bottleneck restricting the overall project progress.

[0003] Although some electric fastening tools exist on the market, their designs are mostly geared towards general bolt applications and do not fully consider the special environment of turnout installation (such as limited space and densely distributed bolts). Therefore, there is an urgent need for a high-efficiency fastening device specifically designed for ZD type turnout installation to address the shortcomings in efficiency, versatility, and operational stability of existing technologies.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the general background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to provide a ZD type turnout installation device with a quick fastening fixture. Through mechanical transmission optimization and humanized design, it solves the problems of low screw fastening efficiency and laborious operation in traditional turnout installation. At the same time, it takes into account versatility and stability, providing an efficient and safe solution for railway turnout maintenance.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a quick-fastening fixture for a ZD type turnout installation device, comprising a fixture base, a support anti-sway bracket mounted on the fixture base, a driving gear rotatably mounted inside the fixture base, two driven gears for transmission, and an open external gear disc; the two driven gears are symmetrically arranged about the plane containing the centerline of the driving gear and the centerline of the open external gear disc; the two driven gears mesh with the driving gear for transmission; the open external gear disc meshes with the two driven gears for transmission; a first notch for a lead screw to pass through is provided at the front end of the fixture base; a circular tube perpendicular to the axial direction of the driving gear is fixed at the rear end of the fixture base; a row of positioning holes for adjusting and limiting the position of the support anti-sway bracket is provided on the outer wall of the circular tube along its axial direction.

[0007] In a preferred embodiment of this invention, a coaxially arranged regular hexagonal through hole is formed in the center of the open external gear disc; anti-slip grooves are evenly formed on the inner wall of the regular hexagonal through hole; a second notch of the open external gear disc is provided on two adjacent surfaces of the regular hexagonal through hole. Before installation and use, the open external gear disc is adjusted until the second notch coincides with the first notch, and a long screw passes through one side of the first and second notches. The open external gear disc moves axially along the long screw, and the regular hexagonal through hole is fitted onto the large screw.

[0008] As a preferred embodiment of this utility model, a core cylinder is mounted on the center hole of the drive gear via a flat key; the core cylinder has a cylindrical structure with an outer circle and an inner square; and a keyway is provided on the outer wall of the core cylinder.

[0009] As a preferred embodiment of this utility model, the front end of the fixture is provided with a first circular hole communicating with the first notch; the diameter of the first circular hole is larger than the diameter of the circumscribed circle of the regular hexagonal through hole, and the diameter of the first circular hole is smaller than the outer diameter of the open external gear disk; the inner cavity of the front end of the fixture is provided with an annular cavity that cooperates with the limited rotation and guidance of the open external gear disk; the inner cavity of the rear end of the fixture is provided with a rear cavity for installing the two driven gears and the driving gear; the two walls of the rear end of the fixture are provided with two pairs of stepped through holes; each of the two pairs of stepped through holes is provided with a pin connected to the driven gear, and the pin is provided with a retaining spring after passing through a pair of stepped through holes; the two walls of the rear end of the fixture are provided with a through hole that cooperates with the core cylinder.

[0010] As a preferred embodiment of this utility model, a handle ring is installed at the rear end of the fixture seat, which is perpendicular to the circular tube.

[0011] As a preferred embodiment of this utility model, the anti-sway support bracket includes a small wheel and a support tube body that slides with the outer wall of the circular tube; an elastic pin is installed on the support tube body; a rectangular seat is fixed to the lower end of the support tube body; a single-threaded shaft for installing the small wheel is fixed to one side of the rectangular seat, and a loosening nut is installed on the single-threaded shaft to lock the small wheel. Pressing down the elastic pin moves the support tube body until the small wheel contacts the ground, the support tube body tilts at a small angle to the ground, and the elastic pin is locked in the nearest positioning hole. The rolling direction of the small wheel is consistent with the axial direction of the core cylinder. The power output end of the power tool is inserted into the core cylinder to drive the drive gear to rotate, which drives the two driven gears to rotate synchronously, and then drives the open external gear disc to rotate, so that the large screw fixing rod of the ZD type turnout installation device and the tip rod can move quickly on the long screw rod, shortening the construction time. During the entire process of tightening the large screw, the anti-sway support bracket provides support on the one hand, and prevents the fixture seat from being deflected at a large angle by the reaction force on the other hand, reducing the gripping force of the hand handle.

[0012] This utility model has the following beneficial effects: This invention utilizes an open external gear disc and gear set transmission design, enabling the fixture to quickly rotate screws to the appropriate position using power tools, avoiding the drawbacks of traditional adjustable wrenches that require frequent repositioning. The tightening time for a single screw is significantly reduced, especially in time-sensitive construction scenarios, resulting in a substantial improvement in overall work efficiency.

[0013] This utility model's anti-sway support bracket forms a support point by contacting the ground with small wheels. Combined with the handle ring at the rear of the equipment base, it effectively reduces the deflection of the equipment due to reaction forces during tightening. This design reduces the gripping force required by the operator when holding the equipment, improving operational comfort and safety.

[0014] The open-type external gear disc of this invention features an anti-slip groove on the inner wall of its hexagonal through-hole, and can be adapted to various screw sizes by replacing modules of different specifications. This versatile design reduces reliance on multiple tools on construction sites, lowering tool costs and carrying burden.

[0015] This utility model features an elastic pin and positioning hole that work together to quickly adjust the support height to adapt to different working environments. Operators do not need to continuously apply additional force to maintain the equipment's balance, making it particularly suitable for long-term work scenarios and effectively reducing physical exertion.

[0016] 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

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of 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.

[0018] Figure 1 This is a structural schematic diagram of the quick-fastening fixture for the ZD type turnout installation device of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of this utility model after removing the anti-sway bracket.

[0020] Figure 3 for Figure 2 A cross-sectional schematic diagram.

[0021] Figure 4 This is a schematic diagram of the fixture base.

[0022] Figure 5 This is a schematic diagram of the core tube structure.

[0023] Figure 6 This is a schematic diagram of the structure of an open external gear disc.

[0024] Figure 7 A schematic diagram of the structure after removing the small wheels to support the anti-sway bracket.

[0025] The attached diagram lists the components represented by each number as follows: 1- Fixture base, 2- Anti-sway support bracket, 3- Driving gear, 4- Driven gear, 5- Open external gear disc, 11- First notch, 12- Round tube, 13- Positioning hole, 51- Regular hexagonal through hole, 52- Anti-slip groove, 53- Second notch, 6- Core cylinder, 61- Keyway, 14- First round hole, 15- Ring cavity, 16- Rear cavity, 17- Stepped through hole, 7- Pin, 18- Round through hole, 19- Handle ring, 21- Support tube body, 22- Elastic pin, 23- Rectangular seat, 24- Single-start threaded shaft, 25- Small wheel. Detailed Implementation

[0026] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] Specific Implementation Example 1: Please refer to Figure 1-7 As shown, this utility model is a quick-fastening device for ZD type turnout installation, which aims to solve the problem of low fastening efficiency of the large screws fixing the action rod and tip rod during the installation of ZD type turnout.

[0028] This utility model discloses a ZD-type turnout installation device with a quick-fastening fixture, comprising a fixture base 1, a support anti-sway bracket 2 mounted on the fixture base 1, a driving gear 3 rotatably mounted inside the fixture base 1, two driven gears 4 for transmission, and an open external gear disc 5. The two driven gears 4 are symmetrically arranged about the plane containing the centerline of the driving gear 3 and the centerline of the open external gear disc 5. The two driven gears 4 mesh with the driving gear 3 for transmission. The open external gear disc 5 meshes with the two driven gears 4 for transmission. A first notch 11 for a lead screw to pass through is provided at the front end of the fixture base 1. A circular tube 12 perpendicular to the axial direction of the driving gear 3 is fixed at the rear end of the fixture base 1. A row of positioning holes 13 for adjusting and limiting the position of the support anti-sway bracket 2 is provided on the outer wall of the circular tube 12 along its axial direction.

[0029] The open external gear disc 5 features a coaxially arranged regular hexagonal through hole 51 in its center. Anti-slip grooves 52 are evenly distributed on the inner wall of the regular hexagonal through hole 51 to enhance friction with the screw and prevent slippage. A second notch 53 is located on two adjacent surfaces of the regular hexagonal through hole 51, facilitating the insertion of the screw into the tool through the opening and then onto the screw. Before installation and use, the open external gear disc 5 is adjusted so that the second notch 53 coincides with the first notch 11, with a long screw passing through one side of the first notch 11 and the second notch 53. The open external gear disc 5 moves axially along the long screw, allowing the regular hexagonal through hole 51 to fit onto the large screw. The open external gear disc 5 can be sold as a series of products, differing only in the size of the regular hexagonal through hole 51. Different sizes of modules can be used to adapt to various screw sizes. This versatile design reduces reliance on multiple tools on construction sites, lowering tool costs and carrying burden. The core cylinder 6 is mounted on the center hole of the drive gear 3 via a flat key. The core cylinder 6 has a cylindrical structure with an outer circle and an inner square, which facilitates connection to the power output end of the power tool. A keyway 61 is provided on the outer wall of the core cylinder 6 to cooperate with the flat key and ensure the stability of power transmission.

[0030] The fixture base 1 has a first circular hole 14 at its front end, which communicates with the first notch 11. The diameter of the first circular hole 14 is larger than the diameter of the circumscribed circle of the regular hexagonal through hole 51, and smaller than the outer diameter of the open external gear disk 5, ensuring that the open external gear disk 5 can rotate smoothly. The front end cavity of the fixture base 1 has an annular cavity 15 that cooperates with the limiting rotation guide of the open external gear disk 5, ensuring the stability of the open external gear disk 5 during rotation. The rear end cavity of the fixture base 1 has a rear cavity 16 for installing two driven gears 4 and a driving gear 3. The two walls of the rear end of the fixture base 1 have two pairs of stepped through holes 17. Each pair of stepped through holes 17 is fitted with a pin 7 connected to a driven gear 4, and a retaining ring is installed after the pin 7 passes through a pair of stepped through holes 17, facilitating the installation and removal of the pin 7 and the driven gear 4. The two walls of the rear end of the fixture base 1 have through holes 18 that cooperate with the core cylinder 6, facilitating the installation and removal of the core cylinder 6 and the driving gear 3.

[0031] The fixture base 1 is equipped with a handle ring 19 that is perpendicular to the round tube 12 at the rear end, which makes it easy for the operator to hold and operate.

[0032] The anti-sway support 2 includes a small wheel 25 and a support tube 21 that slides against the outer wall of the circular tube 12. An elastic pin 22 is installed on the support tube 21 for adjusting and limiting its position. A rectangular seat 23 is fixed to the lower end of the support tube 21. A single-threaded shaft 24 for mounting the small wheel 25 is fixed to one side of the rectangular seat 23, and a loosening nut is installed on the single-threaded shaft 24 to lock the small wheel 25. Pressing down the elastic pin 22 moves the support tube 21 until the small wheel 25 contacts the ground, causing the support tube 21 to tilt at a small angle to the ground, and the elastic pin 22 to engage in the nearest positioning hole 13. The rolling direction of the small wheel 25 is consistent with the axial direction of the core cylinder 6.

[0033] One specific application of this embodiment is: Before installation and use, adjust the open external gear plate 5 until the second notch 53 coincides with the first notch 11, so that the long screw passes through one side of the first notch 11 and the second notch 53. Then, move the open external gear plate 5 along the axial direction of the long screw so that the regular hexagonal through hole 51 fits onto the large screw. Press down the elastic pin 22 and move the support tube 21 until the small wheel 25 contacts the ground. The support tube 21 forms a small angle with the ground, and the elastic pin 22 is engaged in the nearest positioning hole 13, ensuring the stability of the anti-sway bracket 2.

[0034] During operation, the power output end of the power tool is inserted into the core cylinder 6, driving the drive gear 3 to rotate, which in turn drives the two driven gears 4 to rotate synchronously, thereby driving the open external gear disc 5 to rotate, achieving rapid tightening or loosening of the large screws fixing the action rod and tip rod of the ZD type turnout installation device. Throughout the tightening process, the anti-sway bracket 2 not only provides support but also prevents the fixture seat 1 from being subjected to reaction forces and deflecting at a large angle, thus reducing the gripping force of the hand handle ring 19 and improving operating efficiency and comfort.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A quick-fastening fixture for ZD type turnout installation device, characterized in that: It includes a fixture base (1), a support anti-sway bracket (2) mounted on the fixture base (1), a drive gear (3) rotatably mounted in the fixture base (1), two driven gears (4) for transmission, and an open external gear disc (5). The two driven gears (4) are symmetrically arranged about the plane containing the centerline of the driving gear (3) and the centerline of the open external gear disk (5); The two driven gears (4) mesh with the driving gear (3) for transmission; the open external gear disc (5) meshes with the two driven gears (4) for transmission; The front end of the fixture (1) is provided with a first notch (11) for the lead screw to pass through. The rear end of the fixture base (1) is fixed with a round tube (12) that is perpendicular to the axial direction of the drive gear (3); a row of positioning holes (13) for adjusting and limiting the position of the support anti-sway bracket (2) is opened on the outer wall of the round tube (12) along its axial direction.

2. The quick-fastening fixture for the ZD type turnout installation device according to claim 1, characterized in that, The open external gear disc (5) has a coaxially arranged regular hexagonal through hole (51) in the middle; the inner wall of the regular hexagonal through hole (51) has uniformly arranged anti-slip grooves (52); the second notch (53) of the open external gear disc (5) is arranged on two adjacent surfaces of the regular hexagonal through hole (51).

3. The quick-fastening fixture for the ZD type turnout installation device according to claim 2, characterized in that, The core cylinder (6) is mounted on the center hole of the drive gear (3) via a flat key; the core cylinder (6) is a cylindrical structure with an outer circle and an inner square; a keyway (61) is provided on the outer wall of the core cylinder (6).

4. The quick-fastening fixture for the ZD type turnout installation device according to claim 3, characterized in that, The fixture base (1) has a first circular hole (14) at its front end that communicates with the first notch (11); the diameter of the first circular hole (14) is larger than the diameter of the circumscribed circle of the regular hexagonal through hole (51), and the diameter of the first circular hole (14) is smaller than the outer diameter of the open external gear disk (5); the inner cavity at the front end of the fixture base (1) has an annular cavity (15) that is matched with the opening external gear disk (5) for limiting rotation and guiding; the inner cavity at the rear end of the fixture base (1) has a rear cavity (16) for installing the two driven gears (4) and the driving gear (3); the two walls at the rear end of the fixture base (1) have two pairs of stepped through holes (17); each of the two pairs of stepped through holes (17) is fitted with a pin (7) that is connected to the driven gear (4), and the pin (7) is fitted with a snap ring after passing through a pair of stepped through holes (17); the two walls at the rear end of the fixture base (1) have a through hole (18) that is matched with the core cylinder (6).

5. The quick-fastening fixture for the ZD type turnout installation device according to claim 1, characterized in that, The rear end of the fixture base (1) is equipped with a handle ring (19) that is perpendicular to the round tube (12).

6. The quick-fastening fixture for the ZD type turnout installation device according to claim 1, characterized in that, The anti-sway bracket (2) includes a small wheel (25) and a support tube (21) that slides with the outer wall of the round tube (12); an elastic pin (22) is installed on the support tube (21); a rectangular seat (23) is fixed at the lower end of the support tube (21); a single-threaded shaft (24) for installing the small wheel (25) is fixed on one side of the rectangular seat (23).

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