Compression spring damping mechanism for moving trolley

Abstract

The utility model relates to a pressure spring damping mechanism for a moving trolley, and belongs to the technical field of inspection robots. Comprising a base assembly, the base assembly is hinged to one end of a large swing arm assembly, the other end of the large swing arm assembly is hinged to a small swing arm, and a hub motor is arranged on the small swing arm; the base assembly comprises a base body, a first positioning shaft hole is formed in the side face of the base body, an annular compression spring containing groove is formed in the side face of the base body and formed in the periphery of the first positioning shaft hole, and a plurality of partition blocks evenly distributed in the annular direction are arranged in the compression spring containing groove. And a damping pressure spring group is arranged between every two adjacent separation blocks. The four damping compression spring sets are arranged in the base body, the damping compression spring sets are compressed through the first large swing arm compression spring pressing block and the second large swing arm compression spring pressing block, then good anti-seismic buffering is achieved, the occupied space is reduced, and the overall size of the moving trolley is reduced.

Description

Technical Field

[0001] The utility model relates to a compression spring shock-absorbing mechanism for a mobile trolley, belonging to the technical field of inspection robots. Background Art

[0002] The wheeled inspection robot can replace or assist humans in inspection work. It accurately executes and docks at designated locations according to path planning and work requirements, provides infrared temperature measurement, meter reading recording and abnormal status alarm functions for inspection equipment, and realizes background functions such as real-time uploading of inspection data, information display and report generation. It has the characteristics of high inspection efficiency and strong reliability.

[0003] For example, a Chinese utility model provides a ground wheeled inspection robot with good shock absorption effect, and its announcement number is: CN219056392U, which includes a bottom plate, a base is arranged on the top of the bottom plate, grooves are provided on both sides of the bottom of the base, a spring is fixedly connected to the top of the inner cavity of the groove, a connecting column is fixedly connected to the bottom of the spring, the bottom of the connecting column penetrates the inner cavity of the groove and extends to the outside of the groove, the bottom of the connecting column is fixedly connected to the bottom plate, a mounting groove is provided at the bottom of the base, a damper is fixedly connected to the top of the inner cavity of the mounting groove, the bottom of the damper extends to the outside of the mounting groove, the bottom of the damper is fixedly connected to the mounting plate, the bottom of the mounting plate is fixedly connected to the bottom plate, the top of the base is fixedly connected to the body, and the top of the body is fixedly connected to the monitor. This patent has good anti-seismic buffering function through the coordinated use of the bottom plate, the base, the groove, the spring, the connecting column, the mounting groove, the damper, the mounting plate, the body and the monitor, and ensures the anti-seismic performance of the inspection robot during movement. However, the base occupies a large space underneath, resulting in a large overall size of the inspection robot, making it impossible to inspect small spaces. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a compression spring shock absorbing mechanism for a mobile trolley in view of the above-mentioned prior art, which has good shock resistance and buffering, reduces the occupied space, and reduces the overall size of the mobile trolley.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problem is: a compression spring shock-absorbing mechanism for a mobile vehicle, comprising a base assembly, the base assembly is hinged to one end of a large swing arm assembly, the other end of the large swing arm assembly is hinged to a small swing arm, and a hub motor is arranged on the small swing arm; the base assembly comprises a base body, a first positioning shaft hole is arranged on the side surface of the base body, an annular compression spring placement groove is arranged on the outer periphery of the first positioning shaft hole, a plurality of circumferentially evenly distributed partition blocks are arranged in the compression spring placement groove, and a shock-absorbing compression spring group is respectively arranged between two adjacent partition blocks.

[0006] The large swing arm assembly includes a first large swing arm assembly and a second large swing arm assembly, and the first large swing arm assembly and the second large swing arm assembly are arranged on both sides of the base body; the first large swing arm assembly includes a first large swing arm, and a first positioning shaft and a second positioning shaft are arranged on the inner side of the first large swing arm, and a plurality of first large swing arm compression spring pressure blocks uniformly distributed in an annular direction are arranged on the outer periphery of the first positioning shaft; the second large swing arm assembly includes a second large swing arm, and a first positioning groove and a second positioning groove are arranged on the inner side of the second large swing arm, and a plurality of second large swing arm compression spring pressure blocks uniformly distributed in an annular direction are arranged on the outer periphery of the first positioning groove, and the first large swing arm and the second large swing arm are arranged in a matched manner, so that the first positioning shaft is arranged in the first positioning groove after passing through the first positioning shaft hole, and the second positioning shaft is arranged in the second positioning groove.

[0007] A reinforcing rib is arranged on the inner side of the first large swing arm, and a reinforcing rib positioning groove is provided on the inner side of the second large swing arm, and the reinforcing rib is arranged in the reinforcing rib positioning groove.

[0008] Any of the shock-absorbing compression spring groups comprises a first large swing arm compression spring and a second large swing arm compression spring which are symmetrically arranged, and a partition is provided between the first large swing arm compression spring and the second large swing arm compression spring.

[0009] The first large swing arm compression spring is arranged between the partition block and the first large swing arm compression spring compression block, and the second large swing arm compression spring is arranged between the partition block and the second large swing arm compression spring compression block.

[0010] A connecting rod is hinged between the small swing arm and the base assembly.

[0011] Compared with the prior art, the advantages of the utility model are: a compression spring shock-absorbing mechanism for a mobile trolley, in which four groups of shock-absorbing compression spring groups are arranged in the base body, and the shock-absorbing compression spring groups are compressed by the first large swing arm compression spring block and the second large swing arm compression spring block, thereby having good anti-seismic buffering, reducing the occupied space, and reducing the overall size of the mobile trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A three-dimensional diagram of a compression spring shock absorbing mechanism for a mobile vehicle according to an embodiment of the utility model;

[0013] Figure 2 This is a three-dimensional diagram from another perspective of a compression spring shock-absorbing mechanism for a mobile trolley according to an embodiment of the utility model;

[0014] Figure 3 This is an exploded view of the base assembly;

[0015] Figure 4 for Figure 3 Schematic diagram of the middle base body;

[0016] Figure 5 is a schematic diagram of the first large swing arm assembly;

[0017] Figure 6 is a schematic diagram of the second large swing arm assembly;

[0018] In the figure, 1 is the base assembly, 1.1 is the base body, 1.2 is the compression spring storage groove, 1.3 is the partition block, 1.4 is the second large swing arm compression spring, 1.5 is the partition plate, 1.6 is the first large swing arm compression spring, 2 is the first large swing arm assembly, 2.1 is the first large swing arm compression spring pressure block, 2.2 is the first positioning shaft, 2.3 is the reinforcing rib, 2.4 is the first large swing arm, 2.5 is the second positioning shaft, 3 is the second large swing arm assembly, 3.1 is the second large swing arm compression spring pressure block, 3.2 is the first positioning groove, 3.3 is the reinforcing rib positioning groove, 3.4 is the second large swing arm, 3.5 is the second positioning groove, 4 is the small swing arm, 5 is the hub motor, 6 is the connecting rod, and 7 is the embossed flange nut. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] like Figure 1 , 2 As shown, a compression spring shock-absorbing mechanism for a mobile vehicle in this embodiment includes a base assembly 1, and a vehicle frame is fixed on the top of the base assembly 1. The base assembly 1 is hinged to one end of the large swing arm assembly, and the other end of the large swing arm assembly is hinged to the small swing arm 4. The output shaft of the hub motor 5 passes through the small swing arm 4 and is fixed to the small swing arm 4 through the embossed flange nut 7. The hub motor 5 drives the vehicle frame to move. Figure 3 , 4 As shown, the base assembly 1 includes an inverted L-shaped base body 1.1, a first positioning shaft hole is provided on the side of the base body 1.1, and an annular compression spring placement groove 1.2 is provided on the side of the base body 1.1, and the compression spring placement groove 1.2 passes through the base body 1.1. The compression spring placement groove 1.2 is arranged on the outer periphery of the first positioning shaft hole. Four circumferentially evenly distributed partition blocks 1.3 are arranged in the compression spring placement groove 1.2, and the thickness of the partition block 1.3 corresponds to the depth of the compression spring placement groove 1.2. A shock-absorbing compression spring group is respectively provided between two adjacent partition blocks 1.3, and the shock-absorbing compression spring group respectively includes a first large swing arm compression spring 1.6 and a second large swing arm compression spring 1.4 that are symmetrically arranged. A partition plate 1.5 is arranged between the first large swing arm compression spring 1.6 and the second large swing arm compression spring 1.4, and both ends of the partition plate 1.5 are fixed on the partition block 1.3, thereby separating the first large swing arm compression spring 1.6 and the second large swing arm compression spring 1.4 to avoid mutual interference between the first large swing arm compression spring and the second large swing arm compression spring when they are compressed.

[0021] The large swing arm assembly includes a first large swing arm assembly 2 and a second large swing arm assembly 3. The first large swing arm assembly 2 and the second large swing arm assembly 3 are arranged on both sides of the base assembly 1, and the three are fixedly connected by screws. Figure 5As shown, the first large swing arm assembly 2 includes a first large swing arm 2.4, the inner side of the first large swing arm 2.4 is provided with a first positioning shaft 2.2 and a second positioning shaft 2.5 arranged in parallel, and the outer periphery of the first positioning shaft 2.2 is provided with four first large swing arm compression spring pressure blocks 2.1 evenly distributed in the circumferential direction. Figure 6 As shown, the second large swing arm assembly 3 includes a second large swing arm 3.4, a first positioning groove 3.2 and a second positioning groove 3.5 are provided on the inner side of the second large swing arm 3.4, and four second large swing arm compression spring blocks 3.1 are evenly distributed in the circumference of the first positioning groove 3.2, and the first large swing arm compression spring block 2.1 corresponds to the second large swing arm compression spring block 3.1. The first large swing arm 2.4 and the second large swing arm 3.4 are relatively matched, so that the first positioning shaft 2.2 is arranged in the first positioning groove 3.2 after passing through the first positioning shaft hole, and the second positioning shaft 2.5 is arranged in the second positioning groove 3.5, and the first large swing arm 2.4 and the second large swing arm 3.4 are fixedly connected by a plurality of countersunk screws.

[0022] A reinforcing rib 2.3 is provided between the first positioning shaft 2.2 and the second positioning shaft 2.5, and the reinforcing rib 2.3 is fixedly arranged on the inner side of the first large swing arm. A reinforcing rib positioning groove 3.3 is provided on the inner side of the second large swing arm, and when the first large swing arm and the second large swing arm are matched, the reinforcing rib 2.3 is arranged in the reinforcing rib positioning groove 3.3, thereby improving the strength of the large swing arm assembly.

[0023] The first large swing arm compression spring is arranged between the partition block and the first large swing arm compression spring pressure block, and the second large swing arm compression spring is arranged between the partition block and the second large swing arm compression spring pressure block. When the first large swing arm and the second large swing arm swing, the first large swing arm compression spring pressure block compresses the first large swing arm compression spring, and the second large swing arm compression spring pressure block compresses the second large swing arm compression spring, which plays a role of buffering and shock absorption.

[0024] A connecting rod 6 is hinged between the small swing arm 4 and the base body 1.1, and the connecting rod 6 plays a supporting and limiting role.

[0025] Four groups of shock-absorbing compression spring groups are arranged in the base body, and the shock-absorbing compression spring groups are compressed by the first large swing arm compression spring block and the second large swing arm compression spring block, thereby having good shock-resistant buffering, reducing the occupied space, and reducing the overall size of the mobile trolley.

[0026] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A compression spring shock absorbing mechanism for a mobile trolley, characterized in that: It includes a base assembly, which is hinged to one end of a large swing arm assembly, and the other end of the large swing arm assembly is hinged to a small swing arm, and a hub motor is arranged on the small swing arm; the base assembly includes a base body, a first positioning shaft hole is arranged on the side surface of the base body, and an annular compression spring placement groove is arranged on the side surface of the base body, and the compression spring placement groove is arranged on the outer periphery of the first positioning shaft hole, and a plurality of circumferentially evenly distributed partition blocks are arranged in the compression spring placement groove, and a shock-absorbing compression spring group is respectively arranged between two adjacent partition blocks.

2. A compression spring shock absorbing mechanism for a mobile vehicle according to claim 1, characterized in that: The large swing arm assembly includes a first large swing arm assembly and a second large swing arm assembly, and the first large swing arm assembly and the second large swing arm assembly are arranged on both sides of the base body; the first large swing arm assembly includes a first large swing arm, and a first positioning shaft and a second positioning shaft are arranged on the inner side of the first large swing arm, and a plurality of first large swing arm compression spring pressure blocks uniformly distributed in an annular direction are arranged on the outer periphery of the first positioning shaft; the second large swing arm assembly includes a second large swing arm, and a first positioning groove and a second positioning groove are arranged on the inner side of the second large swing arm, and a plurality of second large swing arm compression spring pressure blocks uniformly distributed in an annular direction are arranged on the outer periphery of the first positioning groove, and the first large swing arm and the second large swing arm are arranged in a matched manner, so that the first positioning shaft is arranged in the first positioning groove after passing through the first positioning shaft hole, and the second positioning shaft is arranged in the second positioning groove.

3. A compression spring shock absorbing mechanism for a mobile vehicle according to claim 2, characterized in that: A reinforcing rib is arranged on the inner side of the first large swing arm, and a reinforcing rib positioning groove is provided on the inner side of the second large swing arm, and the reinforcing rib is arranged in the reinforcing rib positioning groove.

4. The compression spring shock absorbing mechanism for a mobile vehicle according to claim 2, characterized in that: Any of the shock-absorbing compression spring groups comprises a first large swing arm compression spring and a second large swing arm compression spring which are symmetrically arranged, and a partition is provided between the first large swing arm compression spring and the second large swing arm compression spring.

5. A compression spring shock absorbing mechanism for a mobile vehicle according to claim 4, characterized in that: The first large swing arm compression spring is arranged between the partition block and the first large swing arm compression spring compression block, and the second large swing arm compression spring is arranged between the partition block and the second large swing arm compression spring compression block.

6. The compression spring shock absorbing mechanism for a mobile vehicle according to claim 1, characterized in that: A connecting rod is hinged between the small swing arm and the base assembly.

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