Locking device and watering cart platform fence with same

Abstract

The utility model discloses a locking device and a watering cart platform fence with the locking device. The locking device comprises a positioning sleeve and a connecting piece, wherein the positioning sleeve and the connecting piece are transversely installed on a vertical rod on the side edge of the platform fence; the telescopic shaft piece comprises a telescopic shaft which penetrates through and is arranged in the positioning sleeve in a drawing mode, one end of the telescopic shaft is connected with the locking rod through a pin shaft, and the other end of the telescopic shaft is fixedly connected with a square frame plate; the turntable is rotatably mounted on the square frame plate, and a handle penetrating through the connecting piece is fixedly connected to the side edge of the upper surface of the turntable; the turntable eccentrically rotates, so that the telescopic shaft piece has a movement trend of moving back and forth in the positioning sleeve; the self-limiting handle is arranged above the connecting piece in a self-locking and rotating mode and fixedly installed at the tail end of the handlebar. A rigid device is used for limiting and closing a platform fence notch, the structure is stable and reliable, operation is easy, opening and closing positions are effectively limited, and the problem of shaking in the traveling process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of locking mechanisms, in particular to a locking device and a sprinkler truck platform fence with the locking device. Background Art

[0002] As the country pays more and more attention to environmental protection, sprinkler trucks have become an indispensable equipment for urban sanitation. When a sprinkler truck performs rear water cannon operation, generally an operator stands on the rear platform of the sprinkler truck to operate the water cannon and perform watering operations on the green belt. There is a protective fence on the rear platform. In order to facilitate the entry and exit of operators, a gap needs to be set at the fence. In order to ensure the safety of personnel working on the platform, a locking device needs to be set at the gap of the fence.

[0003] The locking devices currently on the market generally use chains to lock through locks, and the chain locks need to be removed again after the operation is completed. This method is more troublesome to operate, and the chain is a flexible device, which will shake during the driving process of the vehicle, increase noise and damage the paint surface.

[0004] Therefore, the research purpose of the present utility model is to design a locking device and a sprinkler truck platform fence with a locking device, which has a stable and reliable structure, is easy to operate, uses a rigid device to effectively limit the fence gap, realizes opening and closing, and can avoid the problem of shaking during driving. Utility Model Content

[0005] In view of the technical problems existing in the above-mentioned prior art, the utility model provides a locking device and a sprinkler truck platform fence with the locking device, which can effectively solve the technical problems existing in the above-mentioned prior art.

[0006] The technical solution of the utility model is:

[0007] A locking device, comprising:

[0008] The positioning mechanism comprises a positioning sleeve which is transversely mounted on a side upright pole at a gap in the platform fence, and a connector is fixedly connected to the upper side of the positioning sleeve which faces away from the gap in the platform fence;

[0009] A locking rod is swung up and down and arranged at the gap of the platform fence. When the locking rod is swung to a horizontal position, the gap of the platform fence is blocked;

[0010] The telescopic shaft comprises a telescopic shaft that penetrates and is pulled out of the positioning sleeve, the two ends of the telescopic shaft respectively penetrate and extend to the outside of the positioning sleeve, and the end facing the notch of the platform fence is connected to the locking rod through a corresponding pin shaft, and the end not connected to the locking rod is fixedly connected to a square frame plate;

[0011] The turntable is rotatably mounted on the square frame plate, the connecting member is provided with an embedding hole penetrating the upper and lower ends thereof, and a handle penetrating the embedding hole and provided with a gap with the inner side wall of the embedding hole is fixedly connected to the side edge of the upper surface of the turntable; the turntable rotates eccentrically so that the telescopic shaft has a movement tendency of moving forward and backward in the positioning sleeve;

[0012] The self-limiting handle can be self-lockingly rotated and arranged above the connecting piece, and is fixedly mounted on the end portion of the handle that passes through the connecting piece and extends upward.

[0013] The handle includes a connecting portion with a cylindrical structure passing through the connecting piece, and a mounting portion extending upward with a non-cylindrical structure; the self-limiting handle includes a handle main board and a self-locking mechanism for limiting the rotation of the handle main board, and the end of the handle main board is provided with a mounting hole that is compatible with the mounting portion of the handle, and the self-limiting handle is fixedly connected to the handle on the turntable by bolts.

[0014] Both side edges of the connecting piece are vertically fixed with corresponding limiting pieces for locking the self-limiting handle, and the end portion of the limiting piece that is not connected to the connecting piece is provided with a limiting hole running through the upper and lower parts; the self-locking mechanism includes an inverted L-shaped positioning piece that runs through and is pulled up and down on the handle main board, and the corresponding limiting holes are inserted through the end portion of the inverted L-shaped positioning piece to lock and fix the self-limiting handle.

[0015] The self-locking mechanism also includes a Z-shaped fixing piece for installing the inverted L-shaped positioning piece, the Z-shaped fixing piece consists of a longitudinal portion and a first transverse portion and a second transverse portion which are respectively integrated and folded at both ends of the longitudinal portion, and the Z-shaped fixing piece is fixedly installed on the handle main board by welding the first transverse portion to the handle main board, and the second transverse portion is arranged parallel to the handle main board and spaced apart, the inverted L-shaped positioning piece passes through the second transverse portion and an elastic piece is sleeved on the penetrating end thereof, one end of the elastic piece is fixed to the lower surface of the second transverse portion, and the other end thereof is fixed to a convex edge installed on the outer side wall of the inverted L-shaped positioning piece.

[0016] The end portion of the Z-shaped fixing piece located at the second transverse portion is integrally folded upward to provide a locking portion with an upper end surface in the shape of an inner groove.

[0017] The end of the telescopic shaft connecting the locking rod is integrally formed with a group of connecting parts with arc-shaped outer end surfaces, the end of the locking rod is clamped between the two connecting parts and connected through corresponding pin shafts, and the outer end surface of the locking rod connected to the connecting part is arc-shaped.

[0018] The platform fence is located below the side wall where the locking rod is set, and an elastic clamp for fixing the locking rod is installed, and the opening of the elastic clamp is arranged facing one side of the locking rod.

[0019] A sprinkler truck platform fence with a locking device comprises the above-mentioned locking device and a platform fence, wherein the locking device is arranged on the side of the notch of the platform fence.

[0020] Advantages of the utility model:

[0021] 1) The utility model adopts a rigid device to replace traditional flexible devices such as chains to limit and close the gap in the platform fence. The turntable is controlled to rotate eccentrically by turning the handle, and then the telescopic shaft is stretched along the positioning sleeve, and the locking rod is driven to swing to realize the opening and closing of the gap. The structure is stable and reliable, the operation is simple, and the opening and closing positions are all provided with effective limits to avoid shaking during driving.

[0022] 2) The utility model installs a positioning sleeve transversely on the side upright at the gap of the platform fence, and a telescopic shaft is pulled out and installed in the positioning sleeve. One end of the telescopic shaft is connected to a locking rod through a pin shaft, and the other end is provided with a square frame plate for installing a turntable. A self-limiting handle is installed on the turntable through a handle. By rotating the self-limiting handle, the turntable is driven to rotate eccentrically, and the telescopic shaft connected to the turntable is driven to move horizontally backward as the turntable rotates, thereby driving the locking rod to swing upward until its end is inserted into the positioning sleeve to form a positioning fixation, and the inverted L-shaped positioning piece on the self-limiting handle is inserted into the limiting hole of the left limiting piece to achieve stable locking. At this time, the locking rod is horizontally and transversely arranged at the gap of the platform fence to form a closed state, which can be effectively used to prevent people from falling.

[0023] When the limit handle is moved to the right side of the vehicle, the telescopic shaft is driven forward to the end of the locking rod to withdraw the positioning sleeve, and the locking rod swings downward to a vertical state under the action of its own weight, and its lower end is embedded in the elastic clamp for fixation, and the inverted L-shaped positioning piece is inserted into the limiting hole of the right limit piece for limit fixation. The double fixation allows the locking rod to effectively avoid shaking during driving.

[0024] 3) The utility model uses a Z-shaped fixing piece to install an inverted L-shaped positioning piece, and an elastic piece is arranged outside the inverted L-shaped positioning piece, and the two ends of the elastic piece are respectively fixed to the Z-shaped fixing piece and the L-shaped positioning piece. When the locking rod is not fixed, the inverted L-shaped positioning piece is placed on the locking part, which is convenient for easy rotation of the self-limiting handle, and the elastic piece is compressed; when it is to be fixed, the self-limiting handle is rotated to disengage from the limit of the locking part, and the self-limiting handle moves downward under the dual effects of gravity and elastic reset and is inserted into the handle main board and the limit plate to achieve locking. The self-limiting locking structure is simple, the locking effect is further enhanced, and the convenience of operation is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model.

[0026] Figure 2 for Figure 1 Side view of.

[0027] Figure 3 for Figure 1 Top view of the .

[0028] Figure 4 for Figure 1 Schematic diagram of usage status.

[0029] Figure 5 for Figure 4 Side view of.

[0030] Figure 6 for Figure 4 Top view of the .

[0031] Figure 7 It is a structural schematic diagram of the self-limiting handle.

[0032] Figure 8 for Figure 7 Side view of.

[0033] Fig. 9 It is the installation diagram of the positioning sleeve and the elastic clamp.

[0034] Fig.10 It is a structural schematic diagram of the telescopic shaft.

[0035] Fig.11 This is a schematic diagram of the installation of the turntable and handle.

[0036] In the accompanying drawings: positioning sleeve 1, connecting part 2, platform fence 3, locking rod 4, telescopic shaft part 5, telescopic shaft 501, connecting part 5011, square frame plate 502, turntable 6, handle 7, self-limiting handle 8, handle main board 801, inverted L-shaped positioning part 802, Z-shaped fixing part 803, clamping part 8031, elastic part 804, limiting part 9, limiting hole 901, elastic clamp 10. DETAILED DESCRIPTION

[0037] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the accompanying drawings:

[0038] Example 1

[0039] refer to Figure 1-11 , a locking device, comprising:

[0040] The positioning mechanism comprises a positioning sleeve 1 which is transversely mounted on a side upright pole at a notch of the platform fence 3, and a connector 2 is fixedly connected to the upper side of the positioning sleeve 1 which faces away from the notch of the platform fence 3;

[0041] A locking rod 4 is swung up and down and is arranged at the notch of the platform fence 3. When the locking rod 4 is swung to a horizontal position, it blocks the notch of the platform fence 3;

[0042] The telescopic shaft 5 comprises a telescopic shaft 501 which penetrates and is pulled out of the positioning sleeve 1, and the two ends of the telescopic shaft 501 respectively penetrate and extend to the outside of the positioning sleeve 1, and the end facing the notch of the platform fence 3 is connected to the locking rod 4 through a corresponding pin shaft, and the end not connected to the locking rod 4 is fixedly connected to a square frame plate 502;

[0043] The turntable 6 is rotatably mounted on the square frame plate 502. The connector 2 is provided with an embedding hole penetrating the upper and lower ends thereof. A handle 7 penetrating the embedding hole and provided with a gap between the inner wall of the embedding hole is fixedly connected to the side of the upper surface of the turntable 6. The turntable 6 rotates eccentrically, so that the telescopic shaft 5 has a movement tendency of moving forward and backward in the positioning sleeve 1.

[0044] The self-limiting handle 8 is rotatably arranged above the connecting member 2 in a self-locking manner, and is fixedly mounted on the end portion of the handle 7 that passes through the connecting member 2 and extends upward.

[0045] The utility model adopts a rigid device to replace traditional flexible devices such as chains to limit and close the gap in the platform fence 3. The turntable 6 is controlled to rotate eccentrically by rotating the self-limiting handle 8, and then the telescopic shaft 5 is stretched along the positioning sleeve 1 and the locking rod is driven to swing to realize the opening and closing of the gap. The structure is stable and reliable, the operation is simple, and the opening and closing positions are all provided with effective limits to avoid shaking during driving.

[0046] The handle 7 includes a connecting portion with a cylindrical structure penetrating the connecting member 2, and a mounting portion extending upward with a non-cylindrical structure; the self-limiting handle 8 includes a handle main board 801 and a self-locking mechanism for limiting the rotation of the handle main board 801, and the end of the handle main board 801 is provided with a mounting hole adapted to the mounting portion of the handle 7, and the self-limiting handle 8 is fixedly connected to the handle 7 on the turntable 6 by bolts. Not only is the fixed connection between the self-limiting handle 8 and the turntable 6 ensured, but also the turntable 6 is ensured to be rotated, and eccentric rotation can be achieved.

[0047] Both side edges of the connecting member 2 are vertically fixed with corresponding limiting members 9 for locking the self-limiting handle 8, and the end portion of the limiting member 9 not connected to the connecting member 2 is provided with a limiting hole 901 passing through the upper and lower parts; the self-locking mechanism includes an inverted L-shaped positioning member 802 that passes through and is pulled up and down on the handle main board 801, and the corresponding limiting hole 901 is inserted through the end portion of the inverted L-shaped positioning member 802 to lock and fix the self-limiting handle 8.

[0048] By inserting the inverted L-shaped positioning piece 802 into the limiting holes 901 of the self-limiting handle 8 and the limiting piece 9 respectively, the self-limiting handle 8 and the limiting piece 9 are connected, and the locking rod 4 is further fixed, which effectively prevents the self-limiting handle 8 from rotating during the operation of the vehicle and the locking rod 4 from shaking.

[0049] The end of the telescopic shaft 501 connected to the locking rod 4 is integrally formed with a group of connecting parts 5011 with arc-shaped outer end surfaces. The end of the locking rod 4 is clamped between the two connecting parts 5011 and connected through corresponding pin shafts, and the outer end surface of the locking rod 4 connected to the connecting part 5011 is arranged in an arc shape.

[0050] The platform fence 3 is located below the side wall where the locking rod 4 is set, and an elastic clamp 10 for fixing the locking rod 4 is installed. The opening of the elastic clamp 10 is set facing the side of the locking rod 4.

[0051] The utility model installs a positioning sleeve 1 horizontally on the side upright at the notch of the platform fence 3, and a telescopic shaft 5 is pulled out and installed in the positioning sleeve 1. One end of the telescopic shaft 5 is connected to the locking rod 4 through a pin shaft, and the other end is provided with a square frame plate 502 for installing the turntable 6. A self-limiting handle 8 is installed on the turntable 6 through a handle. By rotating the self-limiting handle 8 to drive the turntable 6 to rotate eccentrically, the telescopic shaft 5 connected to the turntable 6 is driven to move horizontally backward as the turntable 6 rotates, and then the locking rod 4 is driven to swing upward until its end is inserted into the positioning sleeve 1 to form a positioning fixation, and the inverted L-shaped positioning piece 802 on the self-limiting handle 8 is inserted into the limiting hole 901 of the left limiting piece 9 to achieve stable locking. At this time, the locking rod 4 is horizontally and horizontally arranged at the notch of the platform fence 3 to form a closed state, which can be effectively used to prevent people from falling.

[0052] When the limit handle 8 is moved to the right side of the vehicle, the telescopic shaft 5 is driven to move forward until the end of the locking rod 4 is withdrawn from the positioning sleeve 1, the locking rod 4 swings downward to a vertical state under the action of its own weight, and its lower end is embedded in the elastic clamp 10 for fixation, and the inverted L-shaped positioning piece 802 is inserted into the limiting hole 901 of the right limiting piece 9 for limiting and fixation. The double fixation makes the locking rod 4 effectively avoid the problem of shaking during driving.

[0053] Example 2

[0054] refer to Figure 7-8, which is different from Example 1 in that: the self-locking mechanism further includes a Z-shaped fixing piece 803 for installing the inverted L-shaped positioning piece 802, and the Z-shaped fixing piece 803 consists of a longitudinal portion and a first transverse portion and a second transverse portion which are respectively folded and integrally arranged at both ends of the longitudinal portion, and the Z-shaped fixing piece 803 is fixedly installed on the handle main board 801 by welding the first transverse portion to the handle main board 801, and the second transverse portion is arranged parallel to the handle main board 801 and spaced apart, and the inverted L-shaped positioning piece 802 passes through the second transverse portion and an elastic piece 804 is sleeved on its passing end, one end of the elastic piece 804 is fixed to the lower surface of the second transverse portion, and the other end thereof is fixed to a convex edge installed on the outer side wall of the inverted L-shaped positioning piece 802.

[0055] The end of the Z-shaped fixing member 803 located at the second transverse portion is integrally folded upward to form a locking portion 8031 ​​with an inner groove-shaped upper end surface.

[0056] Example 1 needs to use the deadweight of the inverted L-shaped positioning piece 802 to ensure that the inverted L-shaped positioning piece 802 does not separate from the self-limiting handle 8 and the limiting piece 9. Otherwise, when the vehicle is violently and continuously bumpy during the journey, the inverted L-shaped positioning piece 802 is easy to jump up, causing the self-limiting handle 8 and the limiting piece 9 to lose connection, or it is locked and fixed by bolts at the bottom of the inverted L-shaped positioning piece 802, but its convenience performance is poor.

[0057] In Example 2 of the utility model, a Z-shaped fixing piece 803 is used to install an inverted L-shaped positioning piece 802, and an elastic piece 804 is arranged outside the inverted L-shaped positioning piece 802, and the two ends of the elastic piece 804 are respectively fixed to the Z-shaped fixing piece 803 and the L-shaped positioning piece 802. When the locking rod 4 is not fixed, the inverted L-shaped positioning piece 802 is placed on the locking portion 8031, which is convenient for easy rotation of the self-limiting handle 8, and the elastic piece 804 is compressed; when it is to be fixed, the self-limiting handle 8 is rotated to disengage from the limit of the locking portion 8031, and the self-limiting handle 8 moves downward under the dual effects of gravity and elastic reset and is inserted into the handle main board 801 and the limiting plate 9 to achieve locking. The self-limiting locking structure is simple, the locking effect is further enhanced, and the convenience of operation is further improved.

[0058] Example 3

[0059] The difference from Example 1 is that: a sprinkler truck platform fence with a locking device includes the above-mentioned locking device and a platform fence 3, and the locking device is arranged on the side of the notch of the platform fence 3.

[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A locking device, characterized in that: include: The positioning mechanism comprises a positioning sleeve (1) which is transversely mounted on a side upright pole at a notch of a platform fence (3), wherein a connector (2) is fixedly connected to the upper side of the positioning sleeve (1) which faces away from the notch of the platform fence (3); A locking rod (4) is swung up and down and arranged at a notch of the platform fence (3); when the locking rod (4) is swung to a horizontal position, it blocks the notch of the platform fence (3); The telescopic shaft member (5) comprises a telescopic shaft (501) which penetrates and is pulled out of the positioning sleeve (1), the two ends of the telescopic shaft (501) respectively penetrate and extend to the outside of the positioning sleeve (1), and the end facing the notch of the platform fence (3) is connected to the locking rod (4) through a corresponding pin shaft, and the end not connected to the locking rod (4) is fixedly connected to a square frame plate (502); The turntable (6) is rotatably mounted on the square frame plate (502); the connecting member (2) is provided with an embedding hole penetrating the upper and lower ends thereof; a handle (7) penetrating the embedding hole and provided with a gap between the handle and the inner wall of the embedding hole is fixedly connected to the side edge of the upper surface of the turntable (6); the turntable (6) rotates eccentrically, so that the telescopic shaft member (5) has a movement tendency of moving forward and backward in the positioning sleeve (1); The self-limiting handle (8) is arranged above the connecting piece (2) in a self-locking and rotatable manner, and is fixedly mounted on the end portion of the handle (7) that passes through the connecting piece (2) and extends upward.

2. A locking device according to claim 1, characterized in that: The handle (7) comprises a connecting portion with a cylindrical structure penetrating the connecting member (2), and a mounting portion extending upward with a non-cylindrical structure; the self-limiting handle (8) comprises a handle main board (801) and a self-locking mechanism for limiting the rotation of the handle main board (801); a mounting hole matching the mounting portion of the handle (7) is provided at the end of the handle main board (801); the self-limiting handle (8) is fixedly connected to the handle (7) on the turntable (6) by bolts.

3. A locking device according to claim 2, characterized in that: Both side edges of the connecting member (2) are vertically fixed with corresponding limiting members (9) for locking the self-limiting handle (8), and the end portion of the limiting member (9) not connected to the connecting member (2) is provided with a limiting hole (901) running through the upper and lower parts; the self-locking mechanism comprises an inverted L-shaped positioning member (802) which runs through and is pulled up and down on the handle main board (801), and the corresponding limiting hole (901) is inserted through the end portion of the inverted L-shaped positioning member (802) to lock and fix the self-limiting handle (8).

4. A locking device according to claim 3, characterized in that: The self-locking mechanism further comprises a Z-shaped fixing member (803) for installing the inverted L-shaped positioning member (802), wherein the Z-shaped fixing member (803) comprises a longitudinal portion and a first transverse portion and a second transverse portion which are integrally folded and arranged at both ends of the longitudinal portion, and the Z-shaped fixing member (803) is fixedly installed on the handle main board (801) by welding the first transverse portion to the handle main board (801), and the second transverse portion is arranged parallel to and spaced from the handle main board (801), and the inverted L-shaped positioning member (802) passes through the second transverse portion and an elastic member (804) is sleeved on the through end thereof, and one end of the elastic member (804) is fixed to the lower surface of the second transverse portion, and the other end thereof is fixed to a convex edge installed on the outer side wall of the inverted L-shaped positioning member (802).

5. A locking device according to claim 4, characterized in that: The end of the Z-shaped fixing member (803) located at the second transverse portion is integrally folded upward and provided with a locking portion (8031) with an upper end surface in the shape of an inner groove.

6. A locking device according to claim 1, characterized in that: The end of the telescopic shaft (501) connected to the locking rod (4) is integrally formed with a group of connecting parts (5011) with arc-shaped outer end surfaces; the end of the locking rod (4) is clamped between the two connecting parts (5011) and connected via corresponding pins; and the outer end surface of the locking rod (4) connected to the connecting part (5011) is arranged in an arc shape.

7. A locking device according to claim 1, characterized in that: The platform fence (3) is located below the side wall where the locking rod (4) is provided with an elastic clamp (10) for fixing the locking rod (4), and the opening of the elastic clamp (10) is provided facing one side of the locking rod (4).

8. A sprinkler platform fence with a locking device, characterized in that: It comprises the locking device as described in any one of claims 1 to 7 and a platform fence (3), wherein the locking device is arranged on the side of the notch of the platform fence (3).

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