Supporting point switching device and skid

Abstract

The invention discloses a fulcrum switching device and a skid, and belongs to the technical field of vehicle coating. The fulcrum switching device comprises a seat body, a fixed part, a rotating mechanism and a fulcrum pin; the fixed part is fixed on the seat body, the rotating mechanism is rotatably arranged on the seat body, and the fulcrum pin is movably arranged on the fixed part and is connected with one end of the rotating mechanism; and the rotating mechanism can drive the fulcrum pin to eccentrically rotate, so that the fulcrum pin is switched between a first position and a second position on the fixed part. The fulcrum switching device is simple in structure and capable of achieving rapid switching of coating fulcrums.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle painting, and in particular to a fulcrum switching device and a sliding sled. Background Art

[0002] In the vehicle painting process, skids are used to carry vehicles for transportation on the painting line.

[0003] At present, when multiple models are produced on the same painting line, the positions of the fulcrum structures on the skids are different due to differences in body structures. How to quickly switch the painting fulcrum and realize flexible production of the painting line has become an urgent problem to be solved in the current painting industry. Summary of the invention

[0004] In view of this, the present application provides a fulcrum switching device and a sliding sled, which have a simple structure and can realize rapid switching of the painting fulcrum. Specifically, the present application provides the following technical solutions:

[0005] In a first aspect, an embodiment of the present application provides a fulcrum switching device, including a seat body, a fixing portion, a rotating mechanism and a fulcrum pin;

[0006] The fixing part is fixed on the seat body, the rotating mechanism is rotatably arranged on the seat body, and the fulcrum pin is movably arranged on the fixing part and connected to one end of the rotating mechanism;

[0007] The rotating mechanism can drive the fulcrum pin to rotate eccentrically, so that the fulcrum pin is converted between a first position and a second position on the fixing portion.

[0008] In a possible implementation, the rotating mechanism includes a toggle member and a rotating shaft;

[0009] The rotating shaft is rotatably arranged on the seat body;

[0010] The toggle member is connected to one end of the rotating shaft, the fulcrum pin is connected to the other end of the rotating shaft, and the toggle member and the fulcrum pin are respectively arranged on two opposite sides of the seat body.

[0011] In a possible implementation, the rotating mechanism further includes a supporting sleeve and a fixing member;

[0012] The support sleeve is sleeved on the rotating shaft and rotates together with the rotating shaft; the support sleeve passes through the seat body and is connected to the toggle member;

[0013] The fixing member is arranged on the side of the supporting sleeve.

[0014] In a possible implementation, the fixing member includes a first clip spring and a second clip spring, and the first clip spring and the second clip spring are relatively located on two sides of the supporting sleeve.

[0015] In a possible implementation, the rotating mechanism further includes a limiting member;

[0016] The limiting member is arranged at one end of the rotating shaft close to the toggle member, and is located together with the toggle member at one side of the seat body;

[0017] When the fulcrum pin is at the first position or the second position, the limiting member abuts against the seat body.

[0018] In a possible implementation, the fixing portion includes a load-bearing member and a fulcrum bearing surface;

[0019] The load-bearing member is fixed on the seat body and is hollow inside, and the rotating shaft is located inside the load-bearing member;

[0020] The fulcrum bearing surface is fixed on the load-bearing member, and the fulcrum pin is movably arranged on the fulcrum bearing surface.

[0021] In a possible implementation, the fixing portion further includes a positioning member;

[0022] The positioning member is fixed on the seat body and is located on one side of the load-bearing member.

[0023] In a possible implementation, the load-bearing member has an open side, and the fulcrum switching device further includes a push handle;

[0024] The push handle is arranged on the opening side of the load-bearing member and is connected to the load-bearing member.

[0025] On the other hand, an embodiment of the present application provides a slide, the slide comprising a slide body and a fulcrum switching device as described in the above aspect;

[0026] The fulcrum switching device is installed on the slide body.

[0027] In a possible implementation, the number of the fulcrum switching devices is two, and the two fulcrum switching devices are relatively installed on two sides of the sled body;

[0028] The slide also includes two fixed fulcrum structures, which are relatively installed on both sides of the slide body. The two fixed fulcrum structures are located at one end of the slide body, and the two fulcrum switching devices are located at the other end of the slide body.

[0029] The beneficial effects of the technical solution provided by the embodiments of the present application include at least:

[0030] The fulcrum switching device provided in the embodiment of the present application utilizes a rotating mechanism to drive the fulcrum pin to rotate eccentrically when different vehicle models are co-produced on a painting production line, so that the fulcrum pin can be switched between a first position and a second position on a fixed portion. The painting fulcrum can be quickly switched, so that different vehicle models can be supported and fixed by the fulcrum switching device.

[0031] In addition, the fulcrum switching device provided in the embodiment of the present application only includes a seat body, a fixing part, a rotating mechanism and a fulcrum pin, and has a simple structure and is easy to prepare and use.

[0032] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 A schematic diagram of the structure of a fulcrum switching device provided in an embodiment of the present application;

[0035] Figure 2 A schematic diagram of the structure of another fulcrum switching device provided in an embodiment of the present application;

[0036] Figure 3 A schematic diagram of a partial structure of a rotating mechanism in a fulcrum switching device provided in an embodiment of the present application;

[0037] Figure 4 A schematic diagram of the structure of a skid provided in an embodiment of the present application;

[0038] Figure 5 A schematic diagram of the structure of another slide provided in an embodiment of the present application.

[0039] The reference numerals in the figures represent respectively:

[0040] 1. Fulcrum switching device;

[0041] 11. Base body;

[0042] 12, fixing part; 121, load-bearing part; 1211, opening side; 122, fulcrum bearing surface; 123, positioning part;

[0043] 13. Rotating mechanism; 131. Driving member; 132. Rotating shaft; 133. Support sleeve; 134. Fixing member; 1341. First retaining spring; 1342. Second retaining spring; 135. Positioning member;

[0044] 14. Pivot pin; 141. Support head; 142. Support bottom;

[0045] 15. Pushing Hands;

[0046] 2. Skid body;

[0047] 3. Fixed fulcrum structure;

[0048] 4. Lift the device;

[0049] 01. First position;

[0050] 02. Second position.

[0051] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0053] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0054] It should be noted that, unless otherwise defined, the technical terms or scientific terms used herein should have the common meanings understood by persons having ordinary skills in the field to which the present disclosure belongs.

[0055] In order to make the technical solutions and advantages of the present application more clear, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0056] In recent years, with the vigorous development of the automotive industry, major OEMs have rapidly launched new models with new platforms to meet the growing market demand. At the beginning of the design of the paint shop, it is necessary to consider the problem of co-production of multiple models and reserve expansion space in terms of vehicles, tooling and auxiliary tools, and electrical identification. Among them, the reservation of vehicles is the most difficult and has the strongest relationship with the structure of the car body.

[0057] In the relevant technology, in the initial stage of new model development, the painting SE personnel will require the unification of the hard point size of the body bottom plate to avoid the modification and redesign of the vehicle. The product design department can basically meet the requirements of the painting process between the same platform or different platforms with small body size differences. However, in the case of new platforms, especially the pure electric platforms that have appeared in recent years, due to the large structural differences between the body bottom plate and the longitudinal beam, it is difficult to meet the full unification of the bottom plate hard point size required by the painting. How to quickly complete the switching of the painting fulcrum and realize the flexible production of the painting production line has become an urgent problem to be solved in the current painting industry.

[0058] In order to solve the technical problems existing in the related art, the embodiment of the present application provides a fulcrum switching device with a simple structure and capable of realizing rapid switching of the painting fulcrum.

[0059] Figure 1 A schematic diagram of the structure of a fulcrum switching device provided in an embodiment of the present application is shown in FIG. Figure 2 This is a schematic diagram of the structure of another fulcrum switching device provided in an embodiment of the present application. Figure 1 and Figure 2 The fulcrum switching device 1 provided in the embodiment of the present application is installed on the sled body for use and is a part of the sled. Specifically, the fulcrum switching device 1 includes a seat body 11, a fixing portion 12, a rotating mechanism 13 and a fulcrum pin 14.

[0060] The fixing portion 12 is fixed on the seat body 11 , the rotating mechanism 13 is rotatably disposed on the seat body 11 , and the fulcrum pin 14 is movably disposed on the fixing portion 12 and connected to one end of the rotating mechanism 13 .

[0061] The rotating mechanism 13 can drive the fulcrum pin 14 to rotate eccentrically, so that the fulcrum pin 14 switches between the first position 01 and the second position 02 on the fixing portion 12 .

[0062] For example, see Figure 1 , Figure 1The diagram is a schematic diagram of the structure of the fulcrum pin 14 at the first position 01 of the fixing part 12. At this position, the fulcrum pin 14 can meet the hard point requirements of the first platform vehicle model. When a new vehicle model is put into production, the vehicle model identification system of the workshop transmits the vehicle model information to the fulcrum switching station. After the vehicle model arrives at the station, the driving device drives the rotating mechanism 13 to rotate, and then the rotating mechanism 13 drives the fulcrum pin 14 to produce eccentric rotation, so that the fulcrum pin 14 moves from the first position 01 of the fixing part 12 to the second position 02. See Figure 2 , Figure 2 It is a schematic diagram of the structure of the fulcrum pin 1 at the second position 02 of the fixing portion 12. At this position, the fulcrum pin 14 can meet the hard point requirements of the second platform vehicle model.

[0063] It should be noted that before designing the fulcrum switching device 1 of the embodiment of the present application, it is necessary to consider the hard point sizes of the two platform models in advance and determine the rotation radius of the eccentric rotation of the fulcrum pin 14. In addition, it is necessary to modify the workshop host system in advance and maintain the new platform model into the host system.

[0064] In some embodiments, the driving device that drives the rotating mechanism 13 to rotate may be a pneumatic driving device, which can realize automatic switching between different platform vehicle models.

[0065] Therefore, the fulcrum switching device 1 provided in the embodiment of the present application, when different vehicle models are co-produced on the painting production line, utilizes the rotating mechanism 13 to drive the fulcrum pin 14 to rotate eccentrically, so that the fulcrum pin 14 can be switched between the first position 01 and the second position 02 on the fixed part 12, and the painting fulcrum can be quickly switched, so that different vehicle models can be supported and fixed by the fulcrum switching device.

[0066] In addition, the fulcrum switching device 1 provided in the embodiment of the present application only includes a seat body 11, a fixing portion 12, a rotating mechanism 13 and a fulcrum pin 14, and has a simple structure and is easy to prepare and use.

[0067] Furthermore, currently, it is usually chosen to directly add a new support mechanism to the sled body to achieve the switching of the fulcrum. However, the weight of the steel materials such as the lower support crosspiece and the support surface required to add the new support mechanism is relatively large, usually 20kg. Compared with directly adding a new support mechanism, the fulcrum switching device provided in the embodiment of the present application can significantly reduce the use of steel materials, and there is no need to modify the sled body and weld the lower support crosspiece and other structures, which effectively avoids the deformation risk of the sled body. At the same time, since the general assembly parts generally need to be installed near the fulcrum of the vehicle body, if the new support mechanism is directly added, there is a risk of interference with the existing production vehicle body. The fulcrum switching device provided in the embodiment of the present application can well avoid this interference risk.

[0068] In a possible example, the fulcrum switching device provided in the embodiment of the present application is mainly used for two platform vehicle models with hard point sizes varying within 100 mm, and can meet the sliding skid fulcrum switching of two vehicle models with different hard point sizes. In particular, it can solve the problem that when multiple vehicle models are produced on the same line in a paint shop, for two vehicle models with hard point sizes within the range of 100 mm, two different sets of support pins cannot be arranged due to space limitations, effectively avoiding the impact on production by adding a special sliding skid.

[0069] In some embodiments, see Figure 3 ,in Figure 3 A schematic diagram of a partial structure of a rotating mechanism in a fulcrum switching device provided in an embodiment of the present application, combined with Figure 1 The rotating mechanism 13 includes a toggle member 131 and a rotating shaft 132 .

[0070] The rotating shaft 132 is rotatably disposed on the seat body 11; the toggle member 131 is connected to one end of the rotating shaft 132, and the fulcrum pin 14 is connected to the other end of the rotating shaft 132; Figure 1 The toggle member 131 and the fulcrum pin 14 are respectively arranged on two opposite sides of the seat body 11 .

[0071] The driving device drives the toggle member 131 to rotate, so that the toggle member 131 rotates to drive the rotating shaft 132 to rotate, and the rotating shaft 132 drives the fulcrum pin 14 to rotate eccentrically, so that the fulcrum pin 14 can be switched between the first position 01 and the second position 02 on the fixing portion 12.

[0072] For example, see Figure 1 The toggle member 131 may be a rectangular parallelepiped structure.

[0073] In some embodiments, see Figure 3 The fulcrum pin 14 includes a support head 141 and a support bottom 142. The support head 141 is fixed on the support bottom 142 and is respectively arranged on two opposite sides of the support bottom 142 with the rotating shaft 132. The cross-sectional size of the support head 141 gradually decreases in the direction away from the support bottom 142. The support head 141 is used to abut against the longitudinal beam of the vehicle.

[0074] For example, see Figure 1 and Figure 3 The support bottom 142 may be a circular plate, and the rotating shaft 132 is connected to a side of the circular plate that deviates from the center of the circle. In this way, the rotating shaft 132 can realize the eccentric rotation of the fulcrum pin 14 when rotating.

[0075] In some embodiments, see Figure 1 and Figure 3 The rotating mechanism 13 also includes a supporting sleeve 133 and a fixing member 134 .

[0076] The support sleeve 133 is sleeved on the rotating shaft 132 and can rotate together with the rotating shaft 132 ; the support sleeve 133 passes through the seat body 11 and is connected to the toggle member 131 ; the fixing member 134 is arranged on the side of the support sleeve 133 .

[0077] Since the fulcrum switching device 1 provided in the embodiment of the present application needs to support the vehicle on the coating production line, and the weight of the vehicle is usually large, in order to ensure the strength of the fulcrum switching device 1, a support sleeve 133 is provided to strengthen the support for the rotating shaft 132, and a fixing member 134 is provided to support and fix the support sleeve 133.

[0078] In the embodiment of the present application, in order to ensure that the support sleeve 133 can rotate together with the rotating shaft 132, the support sleeve 133 and the rotating shaft 132 have bolt holes respectively, and the support sleeve 133 and the rotating shaft 132 can be fixedly connected together by bolts. Exemplarily, the bolts can be hexagon socket fixing bolts.

[0079] In some embodiments, see Figure 1 and Figure 3 The fixing member 134 includes a first clip spring 1341 and a second clip spring 1342 , and the first clip spring 1341 and the second clip spring 1342 are relatively located on two sides of the support sleeve 133 , so as to support and fix the support sleeve 133 by using the first clip spring 1341 and the second clip spring 1342 .

[0080] In some embodiments, the number of the first clip springs 1341 and the number of the second clip springs 1342 are the same.

[0081] For example, see Figure 3 , the number of the first clip spring 1341 and the number of the second clip spring 1342 are both, and both ends of the first clip spring 1341 after being bent are located on one side of the support sleeve and / or the rotating shaft 132, and both ends of the second clip spring 1342 after being bent are located on the other side of the support sleeve and / or the rotating shaft 132. Of course, the number of the first clip spring 1341 and the second clip spring 1342 can also be two or three or more, which is not specifically limited in the embodiment of the present application.

[0082] In some embodiments, both sides of the support sleeve 133 have abutment surfaces, and the abutment surfaces are planes, and the first clamping spring 1341 and the second clamping spring 1342 abut against the abutment surfaces.

[0083] The cooperation between the first retaining spring 1341 and the second retaining spring 1342 and the abutting surface can not only limit the support sleeve 133 but also prevent the support sleeve 133 from being driven to rotate by the rotating shaft 132, so as to ensure that the support sleeve 133 can provide sufficient support.

[0084] In some embodiments, see Figure 3The rotating mechanism 13 also includes a limiting member 135 .

[0085] The limiting member 135 is disposed at one end of the rotating shaft 132 close to the shifting member 131 , and is located together with the shifting member 131 on one side of the base 11 .

[0086] When the fulcrum pin 14 is at the first position 01 or the second position 02 , the limiting member 135 abuts against the seat body 11 , and the limiting member 135 is used to limit the rotation mechanism 13 to prevent the rotation mechanism 13 from moving in the axial direction.

[0087] In some embodiments, see Figure 1 and / or Figure 2 The fixing portion 12 includes a load-bearing member 121 and a fulcrum bearing surface 122 .

[0088] The load-bearing member 121 is fixed on the base 11 . The interior of the load-bearing member 121 is hollow. The rotating shaft 132 is located inside the load-bearing member 121 , so that the load-bearing member 121 can bear the weight and protect the rotating shaft 132 .

[0089] Understandably, see Figure 1 and / or Figure 2 , part of the support sleeve 133 is also located in the load-bearing member 121. In order to realize the support and fixation of the support sleeve 133 by using the first clamping spring 1341 and the second clamping spring 1342, one end of the first clamping spring 1341 and one end of the second clamping spring 1342 need to pass through the load-bearing member 121 and enter the load-bearing member 121, that is, part of the first clamping spring 1341 and part of the second clamping spring 1342 are located in the load-bearing member 121, and the other part of the first clamping spring 1341 and the other part of the second clamping spring 1342 are located outside the load-bearing member 121 and are fixedly connected to the seat body 11.

[0090] The fulcrum bearing surface 122 is fixed on the load-bearing member 121 , and the fulcrum pin 14 is movably disposed on the fulcrum bearing surface 122 , so that the fulcrum bearing surface 122 provides a bearing surface for the fulcrum pin 14 , thereby facilitating the bearing and movement of the fulcrum pin 14 .

[0091] In some embodiments, see Figure 1 and / or Figure 2 The fixing portion 12 further includes a positioning member 123 .

[0092] The positioning member 123 is fixed on the seat body 11 and is located on one side of the load-bearing member 121 to achieve fixed positioning of the first clip 1341 and the second clip 1342 so as to fix the first clip 1341 and the second clip 1342 to the seat body 11 .

[0093] In some embodiments, see Figure 1 and / or Figure 2The load-bearing member 121 has an open side 1211 , and the fulcrum switching device 1 also includes a push handle 15 .

[0094] The push handle 15 is disposed on the opening side 1211 of the load-bearing component 121 and is connected to the load-bearing component 121 .

[0095] By providing the push handle 15 , when the fulcrum switching device 1 provided by the embodiment of the present application is not in use, the push handle 15 can be pushed so that the fulcrum switching device 1 can be pushed down and then stored.

[0096] In some embodiments, in addition to the open side 1211 , the load-bearing member 121 is also provided with assembly holes on both sides of the open side 1211 to facilitate the assembly of the fulcrum switching device 1 provided in the embodiment of the present application.

[0097] Figure 4 A schematic diagram of the structure of a skid provided in an embodiment of the present application is shown in FIG. Figure 5 For a structural diagram of another slide provided in an embodiment of the present application, see Figure 4 and Figure 5 An embodiment of the present application provides a slide, which includes a slide body 2 and a fulcrum switching device 1 as described in the above embodiment.

[0098] The fulcrum switching device 1 is installed on the sled body 2 .

[0099] It should be noted that Figure 4 and Figure 5 The main difference between the two is the location of the pivot pin, where Figure 4 is a schematic diagram of the structure of the fulcrum pin of the fulcrum switching device at the first position, Figure 5 It is a schematic structural diagram of the fulcrum pin of the fulcrum switching device at the second position.

[0100] In the related art, in the coating production line, the pre-treatment electrophoresis and topcoat processes generally use a skid with four front and rear fulcrums. When introducing a new model with a completely new platform and different hard point sizes, the main engine manufacturers at this stage generally adopt the form of adding a set of new support mechanisms to the existing skid to meet the needs, and the interference between the new support mechanism and the original production model needs to be avoided during the design. For models with hard point size differences within 100mm, because the support pins on the vehicle require space, the two sets of hard point sizes are too close to each other, which will make it impossible to arrange new support pins, that is, the body and equipment cannot be changed at the same time, and it is impossible to achieve flexible production of different platform bodies on the same vehicle. At this time, most main engine manufacturers will use a dedicated skid, which not only increases equipment investment, but also creates huge difficulties for subsequent production, and the production capacity of the paint shop is severely limited.

[0101] Since the slide provided in the embodiment of the present application adopts the fulcrum switching device 1 involved in the above-mentioned embodiment, it can solve the technical problems existing in the related technology, that is, it can quickly realize the switching of the painting fulcrum without adding a new supporting mechanism, and solve the problem of insufficient fulcrum switching space within the range of 100mm. At the same time, it has a simple structure, is easy to prepare and use, and greatly saves production costs.

[0102] In some embodiments, there are two fulcrum switching devices 1 , and the two fulcrum switching devices 1 are relatively installed on both sides of the slide body 2 .

[0103] In the embodiment of the present application, when the two fulcrum switching devices 1 need to be pushed down, the two fulcrum switching devices 1 are tilted in directions opposite to each other to save space.

[0104] The slide provided in the embodiment of the present application also includes two fixed fulcrum structures 3, which are relatively installed on both sides of the slide body 2, the two fixed fulcrum structures 3 are located at one end of the slide body 2, and the two fulcrum switching devices 1 are located at the other end of the slide body 2.

[0105] In this way, the slide in the embodiment of the present application constitutes a slide with four front and rear fulcrums.

[0106] Exemplarily, in the embodiment of the present application, the structural form of the first two fulcrums is a fixed fulcrum structure 3, and the structural form of the last two fulcrums is a fulcrum switching device 1.

[0107] In some embodiments, see Figure 4 and / or Figure 5 The sled provided in the embodiment of the present application also includes a lifting device 4, which is installed on the sled body 2 and connected to the fulcrum switching device 1, and is used to change the fulcrum switching device 1 from a pushed-down state to a lifted state.

[0108] Exemplarily, the lifting device 4 is connected to the fulcrum switching device 1 by bolt connection.

[0109] In one possible example, taking a 60JPH standardized paint shop as an example, the output of new models is 10,000 units per month, which requires the addition of approximately 100 special pre-treatment skids, approximately 300 topcoat skids, and a special skid storage line and related identification systems.

[0110] The investment in the pre-treatment skid is about RMB 10,000 / piece * 100 = RMB 1 million; the investment in the topcoat skid is about RMB 8,000 / piece * 300 = RMB 2.4 million; the new storage line is about RMB 2 million, and the new identification system is about RMB 500,000, totaling about RMB 5.9 million. The above investment is calculated based on the fact that the paint shop has space for expansion. If the shop has no additional space to add a storage line, it will cause serious consequences that the new car model cannot pass through the existing shop, and the investment caused is immeasurable. However, by using the skid provided in the embodiment of the present application, it can be reserved at the beginning of the production line design, without the need for additional investment, which greatly saves production costs.

[0111] It should be noted that the "several" and "at least one" mentioned in this article refer to one or more, and "multiple" and "at least two" refer to two or more. "And / or" describes the association relationship of the associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0112] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0113] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0114] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0115] In the description of this specification, the reference terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application.

[0116] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A fulcrum switching device (1), characterized in that: It comprises a seat body (11), a fixing part (12), a rotating mechanism (13) and a fulcrum pin (14); The fixing portion (12) is fixed on the base (11), the rotating mechanism (13) is rotatably arranged on the base (11), and the fulcrum pin (14) is movably arranged on the fixing portion (12) and connected to one end of the rotating mechanism (13); The rotating mechanism (13) can drive the fulcrum pin (14) to rotate eccentrically, so that the fulcrum pin (14) is switched between a first position (01) and a second position (02) on the fixing portion (12).

2. The fulcrum switching device (1) according to claim 1, characterized in that: The rotating mechanism (13) comprises a toggle member (131) and a rotating shaft (132); The rotating shaft (132) is rotatably arranged on the base body (11); The toggle member (131) is connected to one end of the rotating shaft (132), the fulcrum pin (14) is connected to the other end of the rotating shaft (132), and the toggle member (131) and the fulcrum pin (14) are respectively arranged on two opposite sides of the seat body (11).

3. The fulcrum switching device (1) according to claim 2, characterized in that: The rotating mechanism (13) further comprises a supporting sleeve (133) and a fixing member (134); The support sleeve (133) is sleeved on the rotating shaft (132) and rotates together with the rotating shaft (132); the support sleeve (133) passes through the seat body (11) and is connected to the shifting member (131); The fixing member (134) is arranged on the side of the supporting sleeve (133).

4. The fulcrum switching device (1) according to claim 3, characterized in that: The fixing member (134) comprises a first clamping spring (1341) and a second clamping spring (1342), and the first clamping spring (1341) and the second clamping spring (1342) are relatively located on two sides of the supporting sleeve (133).

5. The fulcrum switching device (1) according to claim 2, characterized in that: The rotating mechanism (13) further includes a limiting member (135); The limiting member (135) is arranged at one end of the rotating shaft (132) close to the shifting member (131), and is located together with the shifting member (131) on one side of the seat body (11); When the fulcrum pin (14) is in the first position (01) or the second position (02), the limiting member (135) abuts against the seat body (11).

6. The fulcrum switching device (1) according to claim 2, characterized in that: The fixing portion (12) comprises a load-bearing member (121) and a fulcrum bearing surface (122); The load-bearing member (121) is fixed on the base (11) and is hollow inside, and the rotating shaft (132) is located inside the load-bearing member (121); The fulcrum bearing surface (122) is fixed on the load-bearing component (121), and the fulcrum pin (14) is movably arranged on the fulcrum bearing surface (122).

7. The fulcrum switching device (1) according to claim 6, characterized in that: The fixing portion (12) further includes a positioning member (123); The positioning member (123) is fixed on the base body (11) and is located on one side of the load-bearing member (121).

8. The fulcrum switching device (1) according to claim 6, characterized in that: The load-bearing member (121) has an open side (1211), and the fulcrum switching device (1) further comprises a push handle (15); The push handle (15) is arranged on the opening side (1211) of the load-bearing member (121) and is connected to the load-bearing member (121).

9. A skid, characterized in that: The slide comprises a slide body (2) and a fulcrum switching device (1) according to any one of claims 1 to 8; The fulcrum switching device (1) is mounted on the slide body (2).

10. The skid according to claim 9, characterized in that: The number of the fulcrum switching devices (1) is two, and the two fulcrum switching devices (1) are relatively installed on two sides of the slide body (2); The slide also includes two fixed fulcrum structures (3), which are relatively mounted on two sides of the slide body (2), the two fixed fulcrum structures (3) are located at one end of the slide body (2), and the two fulcrum switching devices (1) are located at the other end of the slide body (2).

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