A bobsleigh helmsman pushing mechanism and bobsleigh

Abstract

A bobsleigh helmsman pushing mechanism and a bobsleigh. The present invention relates to the technical field of bobsleighs, and solves the problem that the existing bobsleigh helmsman has poor convenience in controlling the acceleration of the sled and entering the sled when pushing. The pushing mechanism includes a push handle bracket, a limit pin assembly and a push handle; the push handle bracket is fixed on the sled shell, a through hole is processed on the push handle bracket, and a positioning tube is fixed at the position of the through hole; the limit pin assembly includes a limit pin and a handle connected to each other, a spring is provided on the limit pin outer sleeve, and the middle part of the handle is rotatably connected to the push handle bracket, so that when the end of the handle away from the limit pin is subjected to force, the compression spring drives the limit pin to move in the positioning tube; the connecting end of the push handle is rotatably connected to the push handle bracket, and a first limit hole and a second limit hole are provided on the push handle, which are respectively used to realize the open state limit and the closed state limit of the push handle when the limit pin falls in.

Description

Technical Field

[0001] The invention relates to the technical field of bobsleighs, and in particular to a bobsleigh helmsman pushing mechanism and the bobsleigh. Background Art

[0002] In bobsleigh competitions, since the sled itself is heavy, if the sled needs to have a cantilever pusher, it will be convenient for athletes to move the sled. Especially during the competition, the cantilever pusher will facilitate the helmsman to push the sled to accelerate and support the body balance when quickly entering the sled. The average speed of the sled in the competition exceeds 100km / h, and the surface of the sled shell needs to be neat and streamlined to reduce air resistance and improve competition results. Therefore, the cantilever pusher needs to be retracted into the shell during the competition, and the cantilever pusher mechanism needs to provide a limit function when opening and closing.

[0003] In the currently known technology, there is no cantilever push handle mechanism and corresponding fixed bracket assembly on the sled. The grabbing positions provided to the helmsman by the sled are the rudder rod, the edge of the sled shell or the hole opened on the sled. The setting of these grabbing positions is not convenient when controlling the acceleration of the sled and entering the sled. Summary of the invention

[0004] In order to solve the problem that the existing bobsleigh helmsman has poor convenience in controlling the acceleration of the sleigh and entering the sleigh when pushing the sleigh, the present invention provides a bobsleigh helmsman pushing mechanism and the bobsleigh.

[0005] The technical solution of the present invention is as follows:

[0006] A bobsleigh helmsman pushing mechanism comprises a pusher bracket, a limit pin assembly and a pusher;

[0007] The handle bracket is fixed on the sled shell, a through hole is processed on the handle bracket, and a positioning tube is fixed at the position of the through hole;

[0008] The limit pin assembly includes a limit pin and a handle connected to each other, a spring is disposed on the limit pin outer sleeve, and the middle part of the handle is rotatably connected to the push handle bracket, so that when the end of the handle away from the limit pin is subjected to force, the compression spring drives the limit pin to move in the positioning tube;

[0009] The connecting end of the push handle is rotatably connected to the push handle bracket. The push handle is provided with a first limiting hole and a second limiting hole, which are respectively used to realize the open state limiting and the closed state limiting of the push handle when the limiting pin falls into.

[0010] Preferably, the handle bracket is fixed to the sled shell by threaded connection, clamping or bonding.

[0011] Preferably, the push handle bracket comprises a fixing plate and two mounting plates perpendicular to the fixing plate, and the mounting plates are used to fix the positioning tube and also to achieve connection with the push handle.

[0012] Preferably, the fixing plate between the two mounting plates is hollowed out, the connecting end of the push handle is placed between the two mounting plates, connecting holes are provided on the connecting end of the push handle and the two mounting plates, and the rotational connection between the push handle and the mounting plates is achieved by the cooperation of the connecting piece and the connecting hole.

[0013] Preferably, the handle bracket is made by die-casting or machining.

[0014] Preferably, the limit pin and the handle are connected by a snap buckle.

[0015] Preferably, a protective sleeve is provided on the outside of the spring, and the inner diameter of the protective sleeve is larger than the outer diameter of the positioning tube.

[0016] A bobsleigh comprises the bobsleigh helmsman pushing mechanism as described above.

[0017] Preferably, the push handle bracket is fixed inside the sled, and a hollow portion is processed on the shell of the bobsleigh for one end of the push handle to pass through and be rotatably connected to the push handle bracket.

[0018] Preferably, a groove adapted to the shape of the push handle is provided on the outside of the shell of the bobsleigh, and the push handle falls into the groove when in a closed state.

[0019] Compared with the prior art, the present invention solves the problem that it is not convenient for the bobsleigh helmsman to control the acceleration of the bobsleigh and to enter the bobsleigh when pushing the bobsleigh, and the specific beneficial effects are as follows:

[0020] The bobsleigh pushing mechanism provided by the present invention has a push handle bracket integrated on a shell, and a push handle and a limit mechanism integrated on the push handle bracket, which is easy to install; the helmsman can control the push handle to open through a limit pin assembly, and grasp the push handle to control the movement of the bobsleigh, and the push handle is helpful for the helmsman to support the body when getting on and off the bobsleigh to maintain body balance. After using the cantilever push handle, the helmsman can control the push handle to be stored in the storage groove of the shell and limit and fix it through the limit pin assembly to prevent it from falling out, thereby preventing the cantilever push handle from protruding from the shell surface during the bobsleigh movement, affecting the streamlined appearance of the bobsleigh, increasing air resistance or causing scratches. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the exploded structure of the push handle bracket and the limit pin assembly of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the push handle of the present invention;

[0023] Figure 3 It is a schematic diagram of the positional relationship between the push handle and the push handle bracket when the push handle is in a closed state according to the present invention;

[0024] Figure 4 It is a schematic diagram of the position relationship between the pushing mechanism and the bobsleigh when the push handle is closed according to the present invention;

[0025] Figure 5 It is a schematic diagram of the positional relationship between the push handle bracket and the limit pin assembly when the limit pin of the present invention is separated from the limit hole;

[0026] Figure 6 It is a schematic diagram of the positional relationship between the push handle bracket and the limit pin assembly when the push handle of the present invention is in the open state;

[0027] Figure 7 It is a schematic diagram of the positional relationship between the push handle and the push handle bracket when the push handle of the present invention is in an open state;

[0028] Figure 8 This is a schematic diagram of the positional relationship between the pushing mechanism and the bobsleigh when the push handle is in the open state according to the present invention. DETAILED DESCRIPTION

[0029] In order to make the technical solution of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the specification of the present invention. It should be noted that the following embodiments are only used to better understand the technical solution of the present invention and should not be understood as a limitation to the present invention.

[0030] Example 1.

[0031] This embodiment provides a bobsleigh helmsman pushing mechanism, including a push handle bracket 1, a limit pin assembly 2 and a push handle 3;

[0032] The handle bracket 1 is fixed on the sled shell, a through hole is processed on the handle bracket 1, and a positioning tube 11 is fixed at the position of the through hole;

[0033] The limit pin assembly 2 includes a limit pin 21 and a handle 22 connected to each other, a spring 23 is provided on the outer sleeve of the limit pin 21, and the middle part of the handle 22 is rotatably connected to the push handle bracket 1, so that when the end of the handle 22 away from the limit pin 21 is subjected to force, the spring 23 is compressed to drive the limit pin 21 to move in the positioning tube 11;

[0034] The connecting end 31 of the push handle 3 is rotatably connected to the push handle bracket 1 , and the push handle 3 is provided with a first limiting hole 32 and a second limiting hole 33 , which are respectively used to realize the open state limiting and the closed state limiting of the push handle 3 when the limiting pin 21 falls into.

[0035] The pushing mechanism of this embodiment can control the push handle to open through the limit pin assembly, and the push handle can be grasped to control the movement of the sled. At the same time, the push handle is helpful for the helmsman to support the body balance when getting on and off the sled. After the helmsman uses the cantilever push handle, the limit pin assembly can be used to control the push handle to be stored in the storage slot of the shell and to be reliably limited and fixed to prevent it from falling out.

[0036] Example 2.

[0037] This embodiment is a further illustration of the embodiment 1, wherein the handle bracket 1 is fixed to the sled shell by threaded connection, clamping or bonding.

[0038] The bobsleigh pushing mechanism described in this embodiment has a push handle bracket integrated on the shell, and a push handle and a limit mechanism integrated on a fixed bracket, which is easy to install.

[0039] Example 3.

[0040] This embodiment is a further illustration of Embodiment 1. The push handle bracket 1 includes a fixing plate 12 and two mounting plates 13 perpendicular to the fixing plate. The mounting plates 13 are used to fix the positioning tube 11 and are also used to connect with the push handle 3 .

[0041] Example 4.

[0042] This embodiment is a further illustration of Embodiment 3. The fixing plate 12 between the two mounting plates 13 is hollowed out. The connecting end 31 of the pushing handle 3 is placed between the two mounting plates 13. Connecting holes are provided on the connecting end 31 of the pushing handle 3 and the two mounting plates 13. The rotational connection between the pushing handle 3 and the mounting plates 13 is achieved by the cooperation of the connecting member and the connecting hole.

[0043] Example 5.

[0044] This embodiment is a further illustration of the embodiment 1, and the handle bracket 1 is made by die-casting or machining.

[0045] Example 6.

[0046] This embodiment is a further illustration of the embodiment 1, and the limit pin 21 and the handle 22 are connected by a buckle.

[0047] Example 7.

[0048] This embodiment is a further illustration of the embodiment 1. A protective cover 24 is disposed on the outer side of the spring. The inner diameter of the protective cover 24 is greater than the outer diameter of the positioning tube 11 .

[0049] Example 8.

[0050] This embodiment provides a bobsleigh, comprising a bobsleigh coxswain pushing mechanism as described in any one of Embodiments 1-7.

[0051] The exploded structure diagram of the bobsleigh in this embodiment, the push handle bracket 1 and the limit pin assembly 2 is shown in Figure 1 , the structural schematic diagram of the pusher 3 is shown in Figure 2 When the push handle is closed, the positional relationship between the push handle 3 and the push handle bracket 1 is as follows: Figure 3 As shown in Figure 2, the position relationship between the propulsion mechanism and the bobsleigh is as follows: Figure 4 When the helmsman wants to push the sled, he can apply force to the handle 22 to drive the limit pin 21 to move in the positioning tube 11, so that the limit pin 21 is separated from the limit hole 33. At this time, the position relationship diagram of the push handle bracket 1 and the limit pin assembly 2 is shown in FIG. Figure 5 At this time, the push handle 3 is pulled out from the groove of the sled shell. When it is pulled out to the push handle open state position, under the action of the spring 23, the limit pin 21 pops out and enters the limit hole 32. At this time, the position relationship diagram of the push handle bracket 1 and the limit pin assembly 2 is shown in Figure 6 The positional relationship between the push handle 3 and the push handle bracket 1 is shown in Figure 7 The relationship between the propulsion mechanism and the bobsleigh is as follows: Figure 8 As shown. At this time, the helmsman can control the movement of the sled by grasping the push handle, and the push handle is helpful for the helmsman to support the body when getting on and off the sled to maintain body balance. After using the cantilever push handle, the helmsman can control the push handle to be stored in the storage slot of the shell through the limit pin assembly and reliably limit and fix it.

[0052] Example 9.

[0053] This embodiment is a further illustration of Embodiment 8, the push handle bracket 1 is fixed inside the sled, and a hollow portion is processed on the shell of the bobsleigh for one end of the push handle 3 to pass through and be rotatably connected to the push handle bracket 1.

[0054] Example 10.

[0055] This embodiment is a further illustration of the eighth embodiment. The outer portion of the shell of the bobsleigh is provided with a groove adapted to the shape of the push handle 3 , and the push handle 3 falls into the groove when in a closed state.

[0056] When the bobsleigh described in this embodiment is in the push handle closed state, the push handle falls into the groove of the sled shell, thereby preventing the cantilever push handle from protruding from the shell surface during the movement of the sled, affecting the streamlined shape of the sled, increasing air resistance or causing scratches.

Claims

1. A bobsleigh helmsman pushing mechanism, characterized in that: It comprises a push handle bracket (1), a limit pin assembly (2) and a push handle (3); The handle bracket (1) is fixed on the sled shell, a through hole is processed on the handle bracket (1), and a positioning tube (11) is fixed at the position of the through hole; The limit pin assembly (2) comprises a limit pin (21) and a handle (22) connected to each other, a spring (23) is provided on the outer sleeve of the limit pin (21), and the middle portion of the handle (22) is rotatably connected to the push handle bracket (1), so that when an end of the handle (22) away from the limit pin (21) is subjected to force, the spring (23) is compressed to drive the limit pin (21) to move in the positioning tube (11); The connecting end (31) of the push handle (3) is rotatably connected to the push handle bracket (1), and the push handle (3) is provided with a first limiting hole (32) and a second limiting hole (33), which are respectively used to realize the open state limiting and the closed state limiting of the push handle (3) when the limiting pin (21) falls into. When the sled is pushed, the handle (22) is forced to drive the limit pin (21) to move in the positioning tube (11), so that the limit pin (21) is separated from the limit hole (33). At this time, the push handle (3) is pulled out from the groove of the sled shell. When it is pulled out to the push handle open state position, under the action of the spring (23), the limit pin (21) pops out and enters the limit hole (32); when the push handle (3) is used, the push handle (3) is controlled by the limit pin assembly (2) to be stored in the storage groove of the shell and is reliably limited and fixed; The handle bracket (1) is fixed to the sled shell by means of threaded connection, clamping or bonding; The push handle bracket (1) comprises a fixing plate (12) and two mounting plates (13) perpendicular to the fixing plate, wherein the mounting plates (13) are used to fix the positioning tube (11) and are also used to connect with the push handle (3); The fixing plate (12) between the two mounting plates (13) is in a hollow state, the connecting end (31) of the push handle (3) is placed between the two mounting plates (13), the connecting end (31) of the push handle (3) and the two mounting plates (13) are provided with connecting holes, and the rotational connection between the push handle (3) and the mounting plates (13) is achieved by the cooperation of the connecting piece and the connecting hole.

2. The bobsleigh helmsman pushing mechanism according to claim 1, characterized in that: The push handle bracket (1) is made by die-casting or machining.

3. The bobsleigh helmsman pushing mechanism according to claim 1, characterized in that: The limiting pin (21) and the handle (22) are connected via a buckle.

4. The bobsleigh helmsman pushing mechanism according to claim 1, characterized in that: A protective sleeve (24) is provided on the outside of the spring, and the inner diameter of the protective sleeve (24) is greater than the outer diameter of the positioning tube (11).

5. A bobsleigh, characterized in that: The invention comprises a bobsleigh coxswain pushing mechanism as claimed in any one of claims 1 to 4.

6. The bobsleigh according to claim 5, characterized in that: The push handle bracket (1) is fixed inside the bobsleigh, and a hollow portion is processed on the shell of the bobsleigh for one end of the push handle (3) to pass through and be rotatably connected to the push handle bracket (1).

7. The bobsleigh according to claim 5, characterized in that: The outer portion of the shell of the bobsleigh is provided with a groove adapted to the shape of the push handle (3), and the push handle (3) falls into the groove when in a closed state.

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