Pit hole protection structure and scissor fork type aerial work platform

Abstract

The utility model relates to the technical field of aerial work platforms, and provides a pit hole protection structure and a scissors fork type aerial work platform, the pit hole protection structure comprises a pit hole connecting rod assembly and a pit hole pressing shaft assembly, and the pit hole connecting rod assembly comprises a connecting rod component, a left pit hole plate and a right pit hole plate; the pit hole pressing shaft assembly comprises a pressing shaft sleeve, a pressing shaft rod and a buffering cushion block, the pressing shaft sleeve is arranged on the upper side of the connecting rod component and fixedly connected with the chassis vertical plate, the pressing shaft rod penetrates through the pressing shaft sleeve and is in sliding fit with the pressing shaft sleeve, and the buffering cushion block is arranged at the upper end of the pressing shaft rod; when the fork frame is folded, the fork frame is suitable for abutting against the buffering cushion block so that the shaft pressing rod can abut against the connecting rod component, and the connecting rod component is used for keeping the left pit hole plate and the right pit hole plate in the horizontal state. According to the pit hole protection structure, the buffering cushion block is arranged on the shaft pressing rod, so that the design of a spring and a shaft sleeve is omitted, and the problem that in the prior art, after the shaft sleeve is ejected out by the spring, the whole structure loses efficacy can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial work platforms, in particular to a pit protection structure and a scissor-type aerial work platform. Background Art

[0002] Scissor-type aerial work platforms are products that serve various industries for high-altitude work, equipment installation, maintenance and other mobile aerial work. Existing scissor-type aerial work platforms are required to be equipped with pothole protection structures to assist in the work to ensure their safety during the work. In the traditional pothole protection structure, the pressure rod structure mainly uses mechanical springs for buffering and shock absorption. This structure is relatively complicated. During assembly, the spring needs to be placed in the pressure sleeve first, then the pressure rod is placed, and finally the upper end sleeve is pressed in using a press-fitting device. There is an interference fit between the sleeve and the pressure sleeve. After long-term use, due to the wear of the sleeve and the relationship between thermal expansion and contraction, the sleeve is easily pushed out by the spring, resulting in structural failure. Utility Model Content

[0003] The first aspect of the utility model provides a pothole protection structure to solve the defect in the prior art that the shaft sleeve is easily pushed out by the spring. A buffer block is arranged on the pressure shaft rod, thereby eliminating the design of the spring and the shaft sleeve. The buffer block is used to assist the soft contact between the fork frame and the pressure shaft rod, thereby solving the problem in the prior art that the shaft sleeve is pushed out by the spring and causes the overall structure to fail.

[0004] A second aspect of the utility model provides a scissor-type aerial work platform.

[0005] The pothole protection structure provided by the utility model comprises:

[0006] A pothole connecting rod assembly, comprising a connecting rod component, a left pothole plate and a right pothole plate, wherein the connecting rod component, the left pothole plate and the right pothole plate are all arranged on a chassis vertical plate and are rotatably connected to the chassis vertical plate respectively, the left pothole plate is arranged on the left side of the connecting rod component and is rotatably connected to the connecting rod component, and the right pothole plate is arranged on the right side of the connecting rod component and is rotatably connected to the connecting rod component;

[0007] The pit clamp assembly includes a clamp sleeve, a clamp rod and a buffer block, wherein the clamp sleeve is arranged on the upper side of the connecting rod component and is fixedly connected to the chassis vertical plate, the clamp rod is passed through the clamp sleeve and slidably cooperates with the clamp sleeve, and the buffer block is arranged at the upper end of the clamp rod; when the fork frame is folded, the fork frame is suitable for abutting against the buffer block so that the clamp rod abuts against the connecting rod component, and the connecting rod component is used to keep the left pit plate and the right pit plate in a horizontal state.

[0008] According to the pothole protection structure provided by the utility model, the pothole pressure shaft assembly also includes at least one adjustment washer, which is arranged between the buffer pad and the pressure shaft rod, and the adjustment washer is used to adjust the angle between the left pothole plate and the right pothole plate and the horizontal plane.

[0009] According to the pothole protection structure provided by the utility model, the pothole pressure shaft assembly also includes a locking piece, and the locking piece includes a limiting portion and a fixing portion, the limiting portion is arranged at the upper end of the fixing portion, the limiting portion radially protrudes from the surface of the fixing portion, and the end of the fixing portion away from the limiting portion passes through the buffer block, the adjusting washer and the pressure shaft rod and is fixed to the pressure shaft rod, and the limiting portion abuts against the buffer block on one side facing the fixing portion, and the limiting portion and the fixing portion are used to fix the buffer block and the adjusting washer.

[0010] According to the pothole protection structure provided by the utility model, a first step hole and a second step hole are provided on the top of the buffer pad, the second step hole is provided at the bottom of the first step hole, the fixing portion is passed through the second step hole, the bottom wall of the first step hole is abutted against the limiting portion, and the depth of the first step hole is greater than or equal to the thickness of the limiting portion.

[0011] According to the pothole protection structure provided by the utility model, a limiting groove is provided on the top of the pressure shaft rod, and the limiting groove is used to install the buffer block and the adjustment washer.

[0012] According to the pothole protection structure provided by the utility model, the fixing portion is threadedly connected with the pressure rod after passing through the buffer pad, the adjustment washer and the pressure rod.

[0013] According to the pothole protection structure provided by the utility model, the buffer pad is a nylon pad or a nitrile rubber pad.

[0014] According to the pothole protection structure provided by the utility model, the connecting rod component includes:

[0015] A rotating connecting rod is arranged below the pressing rod and is rotatably connected to the chassis vertical plate. When the fork frame is folded, the first end of the rotating connecting rod is adapted to abut against the pressing rod and rotate under the push of the pressing rod;

[0016] A left pothole connecting rod has one end rotatably connected to the second end of the rotating connecting rod, and the other end rotatably connected to the left pothole plate; a right pothole connecting rod has one end rotatably connected to the third end of the rotating connecting rod, and the other end rotatably connected to the right pothole plate.

[0017] According to the pothole protection structure provided by the utility model, the rotating connecting rod includes a triangular plate body and a roller, the roller is arranged at the first end of the triangular plate body, the second end of the triangular plate body is rotatably connected to the left pothole connecting rod, and the third end of the triangular plate body is rotatably connected to the right pothole connecting rod.

[0018] The utility model provides a scissor-type aerial work platform, comprising a chassis, a fork frame and a pothole protection structure as described in any of the above items, wherein the fork frame is arranged on the upper side of the chassis, the pothole protection structure is arranged on a chassis vertical plate of the chassis, and the pothole protection structure is suitable for abutting against the fork frame.

[0019] The pothole protection structure provided by the embodiment of the utility model is provided with a buffer block on the upper end of the pressure rod, and the buffer block is used to compensate for the length error of the pressure rod. In this way, when the fork frame is lowered and retracted, the fork frame will not directly abut against the pressure rod, and the buffer block can transform the hard contact between the fork frame and the pressure rod into a soft contact. In this way, the size error of the pressure rod can be compensated based on the deformation of the buffer block itself. Compared with the prior art, the pothole protection structure provided by the embodiment of the utility model is provided with a buffer block on the pressure rod, so that the design of the spring and the sleeve is eliminated, and the buffer block is used to assist the soft contact between the fork frame and the pressure rod, which solves the problem of the overall structure failure caused by the sleeve being pushed out by the spring in the prior art, greatly improves the stability of the pothole protection structure, and reduces the cost of the pothole protection structure during use; in addition, compared with the spring structure, the buffer block is easy to manufacture and assemble, which can reduce the manpower and material resources consumed in production and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is one of the schematic diagrams of the assembly structure of the pothole protection structure provided by the embodiment of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the pothole protection provided by an embodiment of the utility model.

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the pit clamp assembly provided in an embodiment of the utility model.

[0024] Figure 4 This is the second schematic diagram of the assembly structure of the pothole protection structure provided by the embodiment of the utility model.

[0025] Reference numerals:

[0026] 10: pothole protection structure; 20: chassis; 30: fork frame; 100: pothole connecting rod assembly; 110: connecting rod component; 111: rotating connecting rod; 1111: triangle plate body; 1112: roller; 112: left pothole connecting rod; 113: right pothole connecting rod; 120: left pothole plate; 130: right pothole plate; 200: pothole pressure shaft assembly; 210: pressure shaft sleeve; 220: pressure shaft rod; 221: limiting groove; 230: buffer pad; 240: adjusting washer; 250: locking piece; 251: limiting part; 252: fixing part. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0029] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0031] Figure 1 This is one of the schematic diagrams of the assembly structure of the pothole protection structure provided by the embodiment of the utility model; Figure 2 It is a schematic diagram of the structure of the pothole protection provided by the embodiment of the utility model; Figure 3 It is a schematic diagram of the cross-sectional structure of the pit clamp assembly provided in an embodiment of the utility model.

[0032] See also Figure 1 , Figure 2 and Figure 3 A first aspect of an embodiment of the utility model provides a pothole protection structure 10, which includes a pothole connecting rod assembly 100 and a pothole pressure shaft assembly 200, wherein the pothole connecting rod assembly 100 includes a connecting rod component 110, a left pothole plate 120 and a right pothole plate 130, the left pothole plate 120 and the right pothole plate 130 are symmetrically arranged on both sides of the chassis upright plate along the center line of the chassis upright plate, and are located at the lower end of the chassis upright plate, and the left pothole plate 120 and the right pothole plate 130 are respectively rotatably connected to the chassis upright plate, and the rotatable connection can be achieved by a hinge or a pivot connection.

[0033] The connecting rod component 110 is disposed between the left pothole plate 120 and the right pothole plate 130, and is rotatably connected to the left pothole plate 120 and the right pothole plate 130 respectively. In other words, the left pothole plate 120 is disposed on the left side of the connecting rod component 110 and is rotatably connected to the connecting rod component 110, and the right pothole plate 130 is disposed on the right side of the connecting rod component 110 and is rotatably connected to the connecting rod component 110. For the method of the rotatable connection, please refer to the above description.

[0034] The pit presser assembly 200 includes a presser sleeve 210, a presser rod 220 and a buffer pad 230. The presser sleeve 210 is arranged on the upper side of the connecting rod component 110 and is fixedly connected to the chassis vertical plate. Specifically, the presser sleeve 210 can be fixed to the chassis vertical plate by fasteners such as screws or bolts; the presser sleeve 210 is specifically a tubular structure for the presser rod 220 to pass through and slide with, that is, the presser rod 220 can slide up and down along the axis of the presser sleeve 210.

[0035] The buffer block 230 is arranged at the upper end of the pressure rod 220 and is fixedly connected to the pressure rod 220. Specifically, when the fork frame 30 is folded, the bottom plate of the fork frame 30 is suitable for abutting against the buffer block 230. Since the buffer block 230 is arranged on the pressure rod 220, the pressure rod 220 can be gradually pressed downward by the fork frame 30 during the process of folding the fork frame 30. Similarly, since the connecting rod component 110 is arranged below the pressure rod 220, the connecting rod component 110 will also move accordingly during the process of the pressure rod 220 moving downward.

[0036] There are two states of the left pothole plate 120 and the right pothole plate 130. State 1: when the fork frame 30 is folded, the left pothole plate 120 and the right pothole plate 130 are in a horizontal state, far away from the bottom surface, so as to avoid affecting the moving driving process of the scissors-type aerial work platform; State 2: when the fork frame 30 is lifted and unfolded, the left pothole plate 120 and the right pothole plate 130 are in a vertical state, close to the bottom surface. When the scissors-type aerial work platform encounters a pothole, the left pothole plate 120 and the right pothole plate 130 can be supported on the ground to prevent the entire vehicle from tipping over.

[0037] Since the left pothole plate 120 and the right pothole plate 130 are rotatably connected to the connecting rod component 110, the left pothole plate 120 and the right pothole plate 130 can be driven to rotate when the connecting rod moves, that is, the left pothole plate 120 and the right pothole plate 130 can be converted between a horizontal state and a vertical state.

[0038] See also Figures 1 to 3 It is understandable that it is difficult to ensure that the actual size of the pressing rod 220 is completely consistent with the theoretical size when it is manufactured, and there will inevitably be a certain error. If the pressing rod 220 is too long, when the fork frame 30 is lowered and retracted, the fork frame 30 will be lifted up and cannot fall to the preset position. If the pressing rod 220 is too short, there will be a gap between the pressing rod 220 and the fork frame 30 or between the pressing rod 220 and the connecting rod component 110. These gaps will cause the left pit plate 120 and the right pit plate 130 to be unable to reach a complete position. The pothole protection structure 10 provided by the embodiment of the utility model is provided with a buffer block 230 at the upper end of the pressure rod 220, and the buffer block 230 is used to compensate for the length error of the pressure rod 220. In this way, when the fork frame 30 is lowered and retracted, the fork frame 30 will not directly abut against the pressure rod 220. The buffer block 230 can transform the hard contact between the fork frame 30 and the pressure rod 220 into a soft contact, so that the dimensional error of the pressure rod 220 can be compensated based on the deformation of the buffer block 230 itself.

[0039] Compared with the prior art, the pothole protection structure 10 provided by the embodiment of the utility model eliminates the need for a spring and a sleeve by providing a buffer block 230 on the pressure shaft rod 220. The buffer block 230 assists in the soft contact between the fork frame 30 and the pressure shaft rod 220, thereby solving the problem in the prior art that the sleeve is pushed out by the spring and causes the overall structure to fail. This greatly improves the stability of the pothole protection structure 10 and reduces the cost of the pothole protection structure 10 during use. In addition, compared with the spring structure, the buffer block 230 is easy to manufacture and assemble, which can reduce the manpower and material resources consumed in production and assembly.

[0040] Figure 4 This is the second schematic diagram of the assembly structure of the pothole protection structure provided by the embodiment of the utility model.

[0041] See also Figures 1 to 4 The pit pressure shaft assembly 200 further includes at least one adjusting washer 240, which is disposed between the buffer pad 230 and the pressure shaft rod 220. The specific number of the adjusting washers 240 can be adaptively set according to actual conditions. Specifically, when the fork frame 30 is folded, if the left pit plate 120 and the right pit plate 130 do not reach a horizontal position, such as Figure 1 As shown in , the left hole plate 120 and the right hole plate 130 still have an angle a with the horizontal plane, and the total thickness of the corresponding adjustment gasket 240 is b. In this case, Figure 4 As shown, the number of adjustment washers 240 can be adaptively increased so that the total thickness of the entire washer 240 increases to b+c, thereby increasing the downward movement distance of the bottom of the pressure shaft rod 220. This allows the left pit plate 120 and the right pit plate 130 to rotate at a larger angle to meet the need to rotate to a horizontal position.

[0042] See also Figures 1 to 4 It can be understood that the pothole protection structure 10 provided in the embodiment of the utility model can compensate for the possible errors in the production of the buffer block 230 and the pressure rod 220 by adjusting the gasket 240. In this way, the difficulty of producing the buffer block 230 and the pressure rod 220 can be reduced, and it is also conducive to the flexible adjustment of the assembly accuracy, which can greatly save the production cycle and assembly cycle of the pothole protection structure 10.

[0043] Continue to refer to 1. Figure 3 and Figure 4In an optional embodiment of the utility model, the pit pressure shaft assembly 200 further includes a locking member 250, and the locking member 250 includes a limiting portion 251 and a fixing portion 252. The limiting portion 251 is arranged at the upper end of the fixing portion 252, and the limiting portion 251 protrudes from the surface of the fixing portion 252 along its own radial direction. In other words, the side wall of the limiting portion 251 protrudes from the side wall of the locking member 250, and the end of the fixing portion 252 away from the limiting portion 251 is penetrated by the buffer pad 230, the adjustment washer 240 and the pressure shaft rod 220 and then fixed to the pressure shaft rod 220. In the blind hole or through hole, the side of the limiting portion 251 facing the fixing portion 252 abuts against the buffer block 230. It can be understood that, with such a configuration, the buffer block 230 and the adjustment washer 240 can be fixed to the upper end of the pressure rod 220 through the cooperation of the limiting portion 251 and the fixing portion 252. In addition, by adjusting the depth of the fixing portion 252 extending into the pressure rod 220, the tightness between the buffer block 230 and the adjustment washer 240 and the pressure rod 220 can also be adjusted. In other words, the integrity of the pit pressure assembly 200 can be adjusted.

[0044] Continue reading Figure 1 and Figure 3 In an optional embodiment of the present invention, a first stepped hole and a second stepped hole are provided on the top of the buffer block 230, and the second stepped hole is provided at the bottom of the first stepped hole. The inner diameter of the first stepped hole is greater than or equal to the diameter of the limiting portion 251, and the depth of the first stepped hole is greater than or equal to the thickness of the limiting portion 251; the inner diameter of the second stepped hole is smaller than the diameter of the limiting portion 251, and is greater than or equal to the diameter of the fixing portion 252. During assembly, the fixing portion 252 is passed through the second stepped hole, and the limiting portion 251 abuts against the bottom wall of the first stepped hole. It can be understood that, in this arrangement, a On the one hand, the buffer block 230 and the adjustment gasket can be fixed to the upper end of the pressing rod 220 through the first stepped hole, the limiting portion 251, the fixing portion 252 and the pressing rod 220. On the other hand, after the limiting portion 251 is placed in the first stepped hole, the upper surface of the limiting portion 251 can be lower than the upper surface of the buffer block 230. In this way, when the bottom plate of the fork frame 30 abuts against the buffer block 230, rigid contact between the bottom plate of the fork frame 30 and the locking member 250 can be avoided, which can protect the bottom plate of the fork frame 30 and the locking member 250 and increase the service life of the two.

[0045] Continue reading Figure 3 In an optional embodiment of the utility model, a limiting groove 221 is provided on the top of the pressing rod 220, and the limiting groove 221 is used to install the buffer block 230 and the adjusting washer 240. It can be understood that the limiting groove 221 can limit the buffer block 230 and the adjusting washer 240 in the horizontal direction, which can improve the coaxiality between the buffer block 230, the adjusting washer 240 and the pressing rod 220, which is beneficial to the transmission of stress among the three.

[0046] It should be noted that the depth of the limiting groove 221 should be less than the total thickness of the adjusting washer 240 and the buffer block 230 , so as to ensure that the bottom plate of the fork frame 30 abuts against the buffer block 230 instead of the upper end surface of the limiting groove 221 .

[0047] In an optional embodiment of the utility model, the fixing portion 252 is threadedly connected with the pressing rod 220 after passing through the buffer block 230, the adjustment washer 240 and the pressing rod 220. Specifically, a blind hole or a through hole with an internal thread can be provided on the pressing rod 220, and an external thread corresponding thereto can be provided on the fixing portion 252. In this way, when the fixing portion 252 extends into the threaded hole on the pressing rod 220, it can be locked by threaded fastening. In addition, by adaptively adjusting the depth of the fixing portion 252 screwed into the threaded hole, the tightness among the buffer block 230, the adjustment washer 240 and the pressing rod 220 can be adjusted. In an optional embodiment of the utility model, the fixing portion 252 can also be fixed in the blind hole or the through hole of the pressing rod 220 by means of clamping or bonding. Specifically, it can be adaptively set according to actual conditions.

[0048] In an optional embodiment of the present invention, the buffer block 230 is a nylon block or a nitrile rubber block. It can be understood that nylon and nitrile rubber materials have good elastic deformation capabilities, which can improve the processing tolerance of the buffer block 230, the adjustment washer 240 and the pressure rod 220, and reduce the difficulty of assembly.

[0049] Continue reading Figure 2 In an optional embodiment of the utility model, the connecting rod component 110 includes a rotating connecting rod 111, a left hole connecting rod 112 and a right hole connecting rod 113. The rotating connecting rod 111 is arranged below the pressure rod 220. The center of the rotating connecting rod 111 is rotatably connected to the chassis vertical plate. When the fork frame 30 is folded, the first end of the rotating connecting rod 111 is suitable for abutting against the pressure rod 220 and rotating under the push of the pressure rod 220; one end of the left hole connecting rod 112 is rotatably connected to the second end of the rotating connecting rod 111, and the other end is rotatably connected to the left hole plate 120. ; One end of the right pit link 113 is rotatably connected to the third end of the rotating link 111, and the other end is rotatably connected to the right pit plate 130; it can be understood that in the embodiment of the utility model, the rotating link 111 is connected to the left pit plate 120 and the right pit plate 130 at the same time, so that when the rotating link 111 rotates, the left pit plate 120 and the right pit plate 130 can be driven at the same time, which can ensure the synchronization of the left pit plate 120 and the right pit plate 130 during state conversion, and can improve the stability of the scissors-type aerial work platform during operation.

[0050] Continue reading Figure 1 and Figure 4In an optional embodiment of the utility model, the rotating connecting rod 111 includes a triangle plate body 1111 and a roller 1112, the roller 1112 is arranged at the first end of the triangle plate body 1111, the second end of the triangle plate body 1111 is rotatably connected to the left hole plate 120, and the third end of the triangle plate body 1111 is rotatably connected to the right hole plate 130. It should be noted that the triangle plate body 1111 in the utility model embodiment can be a rounded triangle plate or a sharp triangle plate, and specifically, it can be adaptively selected according to actual conditions. It can be understood that by providing the roller 1112, the abutment between the rotating connecting rod 111 and the pressing rod 220 during the rotation process can be facilitated, and the wear of the abutment between the two caused by the rotation of the rotating connecting rod 111 can be avoided, which can greatly improve the service life of the rotating connecting rod 111 and the pressing rod 220.

[0051] Continue reading Figure 1 and Figure 4 A second aspect of an embodiment of the utility model provides a scissor-type aerial work platform, the scissor-type aerial work platform includes a chassis 20, a walking device, a fork frame 30, and the pothole protection structure 10 described in any of the aforementioned embodiments. The fork frame 30 is arranged on the upper side of the chassis 20, and the pothole protection structure 10 is arranged on the chassis vertical plate of the chassis 20. For the specific coordination process between the pothole protection structure 10 and the fork frame 30, please refer to the previous text. For the specific structure and connection relationship of the scissor-type aerial work platform, please refer to the prior art, which will not be repeated here.

[0052] It can be understood that the scissor-type aerial work platform provided in the embodiment of the utility model includes the pothole protection structure 10 described in any of the aforementioned embodiments. Therefore, the scissor-type aerial work platform provided in this embodiment also has the characteristics and beneficial effects of the pothole protection structure 10 in any of the aforementioned embodiments. For details, please refer to the above description.

[0053] It should be noted that the technical solutions in various embodiments of the present utility model can be combined with each other, but the basis for the mutual combination is that it can be implemented by ordinary technicians in the field; when the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist, that is, it does not belong to the protection scope of the present utility model.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A pothole protection structure, characterized in that: include: A pothole connecting rod assembly (100) comprises a connecting rod component (110), a left pothole plate (120) and a right pothole plate (130), wherein the connecting rod component (110), the left pothole plate (120) and the right pothole plate (130) are all arranged on a chassis vertical plate and are rotatably connected to the chassis vertical plate respectively; the left pothole plate (120) is arranged on the left side of the connecting rod component (110) and is rotatably connected to the connecting rod component (110); and the right pothole plate (130) is arranged on the right side of the connecting rod component (110) and is rotatably connected to the connecting rod component (110); A pit clamp assembly (200) comprises a clamp sleeve (210), a clamp rod (220) and a buffer block (230), wherein the clamp sleeve (210) is arranged on the upper side of the connecting rod component (110) and is fixedly connected to the chassis vertical plate, the clamp rod (220) is passed through the clamp sleeve (210) and is slidably matched with the clamp sleeve (210), and the buffer block (230) is arranged at the upper end of the clamp rod (220); when the fork frame (30) is folded, the fork frame (30) is suitable for abutting against the buffer block (230) so that the clamp rod (220) abuts against the connecting rod component (110), and the connecting rod component (110) is used to keep the left pit plate (120) and the right pit plate (130) in a horizontal state.

2. The pothole protection structure according to claim 1, characterized in that: The pit pressure shaft assembly (200) further comprises at least one adjusting washer (240), wherein the adjusting washer (240) is arranged between the buffer pad (230) and the pressure shaft rod (220), and the adjusting washer (240) is used to adjust the angle between the left pit plate (120) and the right pit plate (130) and a horizontal plane.

3. The pothole protection structure according to claim 2, characterized in that: The pit pressure shaft assembly (200) also includes a locking member (250), and the locking member (250) includes a limiting portion (251) and a fixing portion (252). The limiting portion (251) is arranged at the upper end of the fixing portion (252), and the limiting portion (251) protrudes radially from the surface of the fixing portion (252). The end of the fixing portion (252) away from the limiting portion (251) passes through the buffer block (230), the adjustment washer (240) and the pressure shaft rod (220) and is fixed to the pressure shaft rod (220). The limiting portion (251) is in contact with the buffer block (230) on one side facing the fixing portion (252), and the limiting portion (251) and the fixing portion (252) are used to fix the buffer block (230) and the adjustment washer (240).

4. The pothole protection structure according to claim 3, characterized in that: The top of the buffer pad (230) is provided with a first stepped hole and a second stepped hole, the second stepped hole is provided at the bottom of the first stepped hole, the fixing portion (252) is passed through the second stepped hole, the bottom wall of the first stepped hole is in contact with the limiting portion (251), and the depth of the first stepped hole is greater than or equal to the thickness of the limiting portion (251).

5. The pothole protection structure according to claim 3, characterized in that: A limiting groove (221) is provided at the top of the pressing shaft rod (220), and the limiting groove (221) is used to install the buffer pad (230) and the adjusting washer (240).

6. The pothole protection structure according to claim 3, characterized in that: The fixing portion (252) passes through the buffer pad (230), the adjustment washer (240) and the pressing shaft rod (220) and is then threadedly connected to the pressing shaft rod (220).

7. The pothole protection structure according to any one of claims 1 to 6, characterized in that: The buffer pad (230) is a nylon pad or a nitrile rubber pad.

8. The pothole protection structure according to any one of claims 1 to 6, characterized in that: The connecting rod component (110) comprises: A rotating connecting rod (111) is disposed below the pressing rod (220) and is rotatably connected to the chassis vertical plate. When the fork frame (30) is folded, the first end of the rotating connecting rod (111) is adapted to abut against the pressing rod (220) and rotate under the push of the pressing rod (220); A left pit connecting rod (112), one end of which is rotatably connected to the second end of the rotating connecting rod (111), and the other end of which is rotatably connected to the left pit plate (120); A right pothole connecting rod (113) has one end rotatably connected to the third end of the rotating connecting rod (111) and the other end rotatably connected to the right pothole plate (130).

9. The pothole protection structure according to claim 8, characterized in that: The rotating connecting rod (111) comprises a triangular plate body (1111) and a roller (1112), wherein the roller (1112) is arranged at a first end of the triangular plate body (1111), a second end of the triangular plate body (1111) is rotationally connected to the left pit hole connecting rod (112), and a third end of the triangular plate body (1111) is rotationally connected to the right pit hole connecting rod (113).

10. A scissor-type aerial work platform, characterized in that: The invention comprises a chassis (20), a fork frame (30) and a pothole protection structure (10) as claimed in any one of claims 1 to 9, wherein the fork frame (30) is arranged on the upper side of the chassis (20), the pothole protection structure (10) is arranged on a chassis vertical plate of the chassis (20), and the pothole protection structure (10) is suitable for abutting against the fork frame (30).

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