A locking mechanism for a rail trolley

Abstract

The utility model belongs to the technical field of rail trolley design, and relates to a rail trolley locking mechanism, a trolley body and two telescopic sleeves, the bottom of the trolley body is provided with two rotating seats, telescopic rods are rotatably mounted on the two rotating seats, the outer wall of the telescopic rod is provided with two sections of external threads with opposite spirals, the inner wall of the telescopic sleeve is provided with internal threads matching the external threads, an L-shaped suspension is provided at the end of the telescopic sleeve, the bottom end of the L-shaped suspension is provided with an abutment component for abutting against the waist of the track, the top of the L-shaped suspension is provided with a downward pressing component for abutting against the upper surface of the track, and the bottom of the trolley body is also provided with a driving component for driving the telescopic rod to rotate. The utility model is not only applicable to tracks installed on the ground, but also applicable to tracks embedded in the ground, which improves the scope of application.

Description

Technical Field

[0001] The utility model relates to the technical field of rail trolley design, in particular to a rail trolley locking mechanism. Background Art

[0002] A certain type of equipment needs to undergo high and low temperature environment tests. Before the test, the equipment is placed on a rail trolley by a crane, and then the trolley is transported along the I-shaped track to a specific position in the temperature box for corresponding tests to assess the environmental resistance of the equipment.

[0003] Since this type of equipment is heavy and needs to be turned continuously at high speed for a long time during the test, the inertial impact is very large. If the trolley and the I-shaped track cannot be safely and reliably locked, the trolley may move back and forth on the track, which will cause great impact damage to the test equipment and the test equipment itself. The existing track trolley locking mechanism uses a clamping method on the track to achieve positioning and tightening, such as a track trolley locking mechanism with announcement number CN204506915U, which uses a single-track clamping method to clamp and lock both sides of the track with two locking hinges. However, the track used by the track trolley is generally installed indoors, and the track is embedded in the ground, which results in no gap on one side of the track for the locking hinge to enter, so the scope of application of this patent is limited. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to improve the application range of the tightening mechanism.

[0005] The utility model provides a rail trolley locking mechanism comprising a trolley body and two telescopic sleeves, two rotating seats are provided at the bottom of the trolley body, telescopic rods are rotatably mounted on the two rotating seats, the outer wall of the telescopic rod is provided with two sections of external threads with opposite spirals, the inner wall of the telescopic sleeve is provided with an internal thread matching the external thread, an L-shaped suspension is provided at the end of the telescopic sleeve, an abutment component for abutting against the waist of the rail is provided at the bottom of the L-shaped suspension, a pressing component for abutting against the upper surface of the rail is provided at the top of the L-shaped suspension, and a driving component for driving the telescopic rod to rotate is also provided at the bottom of the trolley body.

[0006] Preferably, the abutment assembly comprises an abutment rod and a reinforcing abutment component, a telescopic groove is formed at the end of the abutment rod, and the reinforcing abutment component is installed in the telescopic groove.

[0007] Preferably, the reinforced abutment component includes an abutment head and a plurality of springs, the abutment head is slidably disposed in the telescopic slot, the plurality of springs are evenly distributed in the telescopic slot, and two ends of the spring are respectively connected to the slot wall of the telescopic slot and the abutment head.

[0008] Preferably, the pressing assembly includes a pressing handle, a screw, a threaded sleeve and a rotating table. A rotating handle is provided on the top of the threaded sleeve. The pressing handle is located directly below the L-shaped suspension. The screw is vertically arranged on the top of the pressing handle. The rotating table is arranged on the top of the L-shaped suspension. The threaded sleeve is rotatably arranged on the rotating table. The threaded sleeve is threadedly connected to the screw. A movable groove for the threaded sleeve to move is provided on the trolley body.

[0009] Preferably, the pressing assembly also includes a balancing block, guide slide bars are provided on the groove walls on both sides of the movable groove, a rotating hole rotatably matched with the threaded sleeve is opened on the balancing block, and guide slide grooves slidably matched with the guide slide bars are provided on both sides of the balancing block.

[0010] Preferably, an outer convex ring is provided on the outer wall of the bottom end of the threaded sleeve, and an inner ring groove cooperating with the outer convex ring is provided in the rotating table.

[0011] Preferably, the rotary handle is provided with anti-slip grooves.

[0012] Preferably, the bottom of the pressing handle is provided with anti-slip grooves.

[0013] Preferably, a receiving groove for receiving the pressing handle is provided on the inner top wall of the L-shaped suspension.

[0014] Preferably, the driving assembly includes an electric push rod, a gear and a sliding seat, a rack is slidably provided on the sliding seat, the electric push rod is horizontally arranged at the bottom of the trolley body, the gear is arranged on the telescopic rod, the sliding seat is arranged directly above the gear, and the rack is meshed with the gear.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides a rail trolley locking mechanism that abandons the single rail clamping and locking method. The driving assembly drives the telescopic rod to rotate so that the two abutting assemblies can abut against the waist of the two rails, and the two pressing assemblies are used for secondary locking. The utility model is not only applicable to rails installed on the ground, but also applicable to rails embedded in the ground, which increases the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The structure diagram of the rail trolley locking mechanism of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The structure diagram of the rail trolley locking mechanism of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 3 The structure diagram of the rail trolley locking mechanism of the utility model is shown in FIG. Figure 3 ;

[0021] Figure 4 The structure diagram of the rail trolley locking mechanism of the utility model is shown in FIG. Figure 4 ;

[0022] Figure 5 It is a partial cross-sectional view of the rail trolley locking mechanism of the utility model.

[0023] Figure numerals: 1. trolley body; 11. rotating seat; 12. telescopic rod; 13. moving groove; 131. guide slide; 2. telescopic sleeve; 21. L-shaped suspension; 22. accommodating groove; 3. abutment assembly; 31. abutment rod; 311. telescopic groove; 32. reinforced abutment component; 321. abutment head; 322. spring; 4. pressing assembly; 41. pressing handle; 42. screw; 43. threaded sleeve; 431. outer convex ring; 44. rotating handle; 45. rotating table; 46. balancing block; 461. guide slide; 5. driving assembly; 51. electric push rod; 52. gear; 53. sliding seat; 54. rack. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] In this embodiment, if Figures 1 to 5 As shown, a rail trolley locking mechanism includes a trolley body 1 and two telescopic sleeves 2. Two rotating seats 11 are provided at the bottom of the trolley body 1. Telescopic rods 12 are rotatably mounted on the two rotating seats 11. The outer wall of the telescopic rod 12 is provided with two sections of external threads with opposite spirals. The inner wall of the telescopic sleeve 2 is provided with internal threads matching the external threads. An L-shaped suspension 21 is provided at the end of the telescopic sleeve 2. An abutment component 3 for abutting against the waist of the rail is provided at the bottom of the L-shaped suspension 21. A downward pressing component 4 for abutting against the upper surface of the rail is provided at the top of the L-shaped suspension 21. A driving component 5 for driving the telescopic rod 12 to rotate is also provided at the bottom of the trolley body 1.

[0026] The utility model abandons the single-track clamping and locking method, and drives the telescopic rod 12 to rotate through the driving component 5. The driving component 5 includes an electric push rod 51, a gear 52 and a sliding seat 53. A rack 54 is slidably provided on the sliding seat 53. The electric push rod 51 is horizontally arranged at the bottom of the trolley body 1, the gear 52 is arranged on the telescopic rod 12, the sliding seat 53 is arranged directly above the gear 52, and the rack 54 is meshed with the gear 52.

[0027] The electric push rod 51 drives the rack 54 to translate in the sliding seat 53, the rack 54 drives the gear 52 to rotate, the gear 52 drives the telescopic rod 12 to rotate, and the telescopic sleeve 2 translates through the cooperation of the external thread and the internal thread. The moving directions of the two telescopic sleeves 2 are opposite until the abutment assembly 3 abuts against the waist of the track. The abutment assembly 3 includes an abutment rod 31 and a reinforced abutment component 32. A telescopic groove 311 is opened at the end of the abutment rod 31, and the reinforced abutment component 32 is installed in the telescopic groove 311.

[0028] The reinforcing abutment component 32 includes an abutment head 321 and a plurality of springs 322 . The abutment head 321 is slidably disposed in the telescopic slot 311 . The plurality of springs 322 are evenly distributed in the telescopic slot 311 , and two ends of the spring 322 are respectively connected to the slot wall of the telescopic slot 311 and the abutment head 321 .

[0029] The abutment joint 321 first abuts against the waist of the track, and then retracts into the telescopic slot 311, and all springs 322 are compressed. After the driving assembly 5 stops working, the elastic force of the spring 322 can drive the abutment joint 321 to abut against the waist of the track, thereby improving the stability of the clamping and locking.

[0030] The L-shaped suspension 21 can be suspended directly above the track, and then be clamped and locked for the second time through the pressing assembly 4. The pressing assembly 4 includes a pressing handle 41, a screw rod 42, a threaded sleeve 43 and a rotating table 45. A rotating handle 44 is provided on the top of the threaded sleeve 43. The pressing handle 41 is located directly below the L-shaped suspension 21. The screw rod 42 is vertically arranged on the top of the pressing handle 41. The rotating table 45 is arranged on the top of the L-shaped suspension 21. The threaded sleeve 43 is rotatably arranged on the rotating table 45. The threaded sleeve 43 is threadedly connected to the screw rod 42. A moving groove 13 for the threaded sleeve 43 to move is provided on the trolley body 1.

[0031] The threaded sleeve 43 can be rotated by the rotating handle 44. In order to avoid slipping, anti-skid patterns are provided on the rotating handle 44. The threaded sleeve 43 rotates on the rotating table 45. In order to limit the threaded sleeve 43, an outer convex ring 431 is provided on the outer wall of the bottom end of the threaded sleeve 43. The rotating table 45 is provided with an inner ring groove that cooperates with the outer convex ring 431. After the threaded sleeve 43 is rotated, it can drive the screw rod 42 to move downward, and the screw rod 42 drives the pressing handle 41 to move downward. The pressing handle 41 can abut against the upper surface of the track. In order to increase the friction between the pressing handle 41 and the upper surface of the track, anti-skid patterns are provided at the bottom of the pressing handle 41.

[0032] Furthermore, the pressing component 4 also includes a balancing block 46. Guide slides 131 are provided on the groove walls on both sides of the movable groove 13. A rotating hole that rotates with the threaded sleeve 43 is opened on the balancing block 46. Guide grooves 461 that slide with the guide slides 131 are provided on both sides of the balancing block 46. The balancing block 46 can be stably translated in the movable groove 13 through the cooperation of the guide slides 131 and the guide grooves 461. The stability of the threaded sleeve 43 in the rotating hole of the balancing block 46 is also improved.

[0033] Furthermore, a receiving groove 22 for receiving the pressing handle 41 is provided on the inner top wall of the L-shaped suspension 21 , and the pressing handle 41 can be hidden in the receiving groove 22 .

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A rail trolley locking mechanism, characterized in that: The invention comprises a trolley body (1) and two telescopic sleeves (2), wherein two rotating seats (11) are arranged at the bottom of the trolley body (1), and telescopic rods (12) are rotatably mounted on the two rotating seats (11), and the outer wall of the telescopic rod (12) is provided with two sections of external threads with opposite spirals, and the inner wall of the telescopic sleeve (2) is provided with internal threads matching the external threads, and the end of the telescopic sleeve (2) is provided with an L-shaped suspension (21), and the bottom end of the L-shaped suspension (21) is provided with an abutting component (3) for abutting against the waist of the track, and the top of the L-shaped suspension (21) is provided with a pressing component (4) for abutting against the upper surface of the track, and the bottom of the trolley body (1) is also provided with a driving component (5) for driving the telescopic rod (12) to rotate.

2. The rail trolley locking mechanism according to claim 1, characterized in that: The abutment assembly (3) comprises an abutment rod (31) and a reinforcing abutment component (32); a telescopic groove (311) is provided at the end of the abutment rod (31), and the reinforcing abutment component (32) is installed in the telescopic groove (311).

3. The rail trolley locking mechanism according to claim 2, characterized in that: The reinforcing abutment component (32) comprises an abutment head (321) and a plurality of springs (322); the abutment head (321) is slidably disposed in the telescopic slot (311); the plurality of springs (322) are evenly distributed in the telescopic slot (311); and two ends of the spring (322) are respectively connected to the slot wall of the telescopic slot (311) and the abutment head (321).

4. The rail trolley locking mechanism according to claim 1, characterized in that: The pressing assembly (4) comprises a pressing handle (41), a screw rod (42), a threaded sleeve (43) and a rotating platform (45); a rotating handle (44) is provided on the top of the threaded sleeve (43); the pressing handle (41) is located directly below the L-shaped suspension (21); the screw rod (42) is vertically arranged on the top of the pressing handle (41); the rotating platform (45) is arranged on the top of the L-shaped suspension (21); the threaded sleeve (43) is rotatably arranged on the rotating platform (45); the threaded sleeve (43) is threadedly connected to the screw rod (42); and a moving groove (13) for the threaded sleeve (43) to move is provided on the trolley body (1).

5. The rail trolley locking mechanism according to claim 4, characterized in that: The pressing assembly (4) further comprises a balancing block (46), guide slide bars (131) are arranged on the groove walls on both sides of the movable groove (13), a rotating hole for rotationally cooperating with the threaded sleeve (43) is opened on the balancing block (46), and guide slide grooves (461) for slidingly cooperating with the guide slide bars (131) are arranged on both sides of the balancing block (46).

6. The rail trolley locking mechanism according to claim 5, characterized in that: An outer convex ring (431) is provided on the outer wall of the bottom end of the threaded sleeve (43), and an inner ring groove matching the outer convex ring (431) is provided inside the rotating platform (45).

7. The rail trolley locking mechanism according to claim 6, characterized in that: The rotating handle (44) is provided with anti-slip grooves.

8. The rail trolley locking mechanism according to claim 7, characterized in that: The bottom of the pressing handle (41) is provided with anti-slip grooves.

9. The rail trolley locking mechanism according to claim 8, characterized in that: The inner top wall of the L-shaped suspension (21) is provided with a receiving groove (22) for receiving the pressing handle (41).

10. The rail trolley locking mechanism according to claim 1, characterized in that: The driving assembly (5) comprises an electric push rod (51), a gear (52) and a sliding seat (53); a rack (54) is slidably provided on the sliding seat (53); the electric push rod (51) is horizontally arranged at the bottom of the trolley body (1); the gear (52) is arranged on the telescopic rod (12); the sliding seat (53) is arranged directly above the gear (52), and the rack (54) is meshed with the gear (52).

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