Split type floating joint and jacking device

Abstract

The utility model discloses a split type floating joint and a jacking device, and the split type floating joint comprises a connecting piece, a first fixing piece and a second fixing piece, the connecting piece is provided with a mounting hole, the mounting hole extends in the thickness direction of the connecting piece, an annular groove is formed in the circumferential side wall of the connecting piece, and the connecting piece is provided with an abutting end in the thickness direction. The first fixing piece is provided with a first fixing part and a second fixing part, the first fixing part extends into one part of the annular groove, the second fixing part extends into the other part of the annular groove, the first fixing piece and the second fixing piece jointly clamp the connecting piece, and the first fixing piece and the second fixing piece are both used for being fixedly connected with a top plate of the jacking device. The first fixing piece is further provided with a first containing groove, the second fixing piece is further provided with a second containing groove, and the first containing groove and the second containing groove are used for jointly containing the abutting end of the connecting piece. Through the arrangement, the problem that a floating connector in the prior art is inconvenient to maintain, overhaul or replace is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of connection structures, in particular to a split floating joint and a jacking device. Background Art

[0002] In the process of helium testing the battery, the battery fixture needs to be lifted from the mobile module to the upper cover plate by a lifting mechanism, so that the battery fixture and the upper cover plate cooperate to form a closed helium testing chamber to provide a closed environmental condition for the helium testing of the battery.

[0003] The jacking mechanism in the existing related technology generally uses a cylinder as a power source. The cylinder is connected to the battery fixture through a floating joint. When the direction of the driving force of the cylinder and the force point are not in a straight line, the piston rod is easy to deform. During the jacking process, the floating joint absorbs the deviation of the parallelism between the workpiece and the cylinder, realizes a flexible connection, and extends the service life of the cylinder.

[0004] Therefore, in the actual production process, it is necessary to ensure the normal use of the floating joint, so timely maintenance, repair or replacement of the floating joint becomes particularly important. However, due to the narrow space between the jacking mechanism and the mobile module, and the complex structure of the floating joint in the existing related technology, it is difficult to maintain or replace the floating joint in the subsequent maintenance or replacement process. Utility Model Content

[0005] The utility model mainly provides a split floating joint to solve the problem of inconvenience in maintenance, repair or replacement of the floating joint in the existing related technology.

[0006] To achieve the above object, the utility model provides a split floating joint, which includes a connecting member, a first fixing member and a second fixing member;

[0007] The connecting member has a mounting hole, which is extended along the thickness direction of the connecting member itself, and the mounting hole is used to install the piston rod of the cylinder of the jacking device. The circumferential side wall of the connecting member is provided with an annular groove, and the connecting member has an abutment end along the thickness direction;

[0008] The first fixing member has a first fixing portion, and the first fixing member has a second fixing portion, the first fixing portion extends into a portion of the annular groove, and the second fixing portion extends into another portion of the annular groove, the first fixing member and the second fixing member jointly clamp the connecting member, and the first fixing member and the second fixing member are both used to be fixedly connected to the top plate of the jacking device, the first fixing member is also provided with a first accommodating groove, and the second fixing member is also provided with a second accommodating groove, and the first accommodating groove and the second accommodating groove are used to jointly accommodate the abutting end of the connecting member.

[0009] In some embodiments of the present invention, the center line of the mounting hole is arranged to coincide with the axial center line of the connecting member.

[0010] In some embodiments of the utility model, the abutting end has two arcuate side walls, the two arcuate side walls are arranged back to back, the first accommodating groove is formed with a first arcuate groove wall, the second accommodating groove is formed with a second arcuate groove wall, one of the two arcuate side walls abuts and cooperates with the first arcuate groove wall, and the other abuts and cooperates with the second arcuate groove wall.

[0011] In some embodiments of the utility model, the connecting member has two planar side walls, the two planar side walls are arranged back to back, the first accommodating groove is formed with two first limiting plane walls, the two first limiting plane walls are arranged opposite to each other, and the second accommodating groove is formed with two second limiting plane walls, the two second limiting plane walls are arranged opposite to each other;

[0012] One of the two first limiting plane walls and one of the two first limiting plane walls both abut against one of the two planar side walls, and the other of the two first limiting plane walls and the other of the two first limiting plane walls both abut against the other of the two planar side walls.

[0013] In some embodiments of the present invention, the first fixing portion forms two first abutting flat walls, the two first abutting flat walls are arranged opposite to each other, and the second fixing portion forms two second abutting flat walls, the two second abutting flat walls are arranged opposite to each other;

[0014] The two first abutting flat walls are in one-to-one planar abutment with two groove walls opposite to the annular groove, and the two second abutting flat walls are in one-to-one planar abutment with two groove walls opposite to the annular groove.

[0015] In some embodiments of the present invention, both the first fixing portion and the second fixing portion are clearance-matched with the groove bottom of the annular groove.

[0016] In some embodiments of the present invention, the first fixing portion and the second fixing portion are arranged in an arc shape.

[0017] In some embodiments of the present invention, the first fixing member is provided with a plurality of first bolt holes, and the second fixing member is provided with a plurality of second bolt holes.

[0018] In some embodiments of the present invention, the plurality of first bolt holes are distributed circumferentially and are disposed close to the edge of the first receiving groove; the plurality of second bolt holes are distributed circumferentially and are disposed close to the edge of the second receiving groove.

[0019] To achieve the above-mentioned purpose, the utility model further proposes a jacking device, which includes a cylinder, a top plate and a split floating joint, wherein the piston rod of the cylinder is connected to the top plate through the split floating joint.

[0020] The beneficial effect of the utility model is as follows: different from the prior art, the split floating joint disclosed in the utility model adopts a split design, the first fixing member and the second fixing member are both detachably connected to the connecting member, the first fixing portion and the second fixing portion are engaged with the annular groove, and when the first fixing member and the second fixing member are fixedly connected to the external structure, the first fixing member and the second fixing member cooperate together to form a constraint on the connecting member, thereby assembling the first fixing member, the second fixing member and the connecting member together, and in the subsequent maintenance, overhaul or replacement of the split floating joint, it is only necessary to disassemble the first fixing member or the second fixing member to release the constraint on the connecting member, thereby realizing rapid replacement of parts, and providing convenience for maintenance, overhaul or replacement of the split floating joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in 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 only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the jacking device of the utility model;

[0023] Figure 2 It is a front view structural schematic diagram of an embodiment of the jacking device of the utility model;

[0024] Figure 3 It is a structural schematic diagram of an embodiment of the split floating joint of the utility model;

[0025] Figure 4 This is a schematic diagram of the exploded structure of an embodiment of the split floating joint of the utility model;

[0026] Figure 5 It is a schematic cross-sectional structure diagram of an embodiment of a split floating joint of the utility model.

[0027] Description of Figure Numbers:

[0028] 100. Lifting device; 10. Cylinder; 20. Top plate; 30. Split floating joint; 1. Connecting piece; 11. Mounting hole; 12. Annular groove; 13. Abutment end; 131. Arc-shaped side wall; 132. Plane side wall; 2. First fixing piece; 21. First fixing portion; 211. First abutment flat wall; 22. First accommodating groove; 221. First arc-shaped groove wall; 222. First limiting plane wall; 23. First bolt hole; 3. Second fixing piece; 31. Second fixing portion; 311. Second abutment flat wall; 32. Second accommodating groove; 321. Second arc-shaped groove wall; 322. Second limiting plane wall; 33. Second bolt hole.

[0029] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] The utility model provides a split floating joint, referring to Figure 1 and Figure 2The split floating joint 30 is applied to the jacking device 100, and the split floating joint 30 plays a connecting role. The split floating joint 30 can also be used on other structural parts that need to be connected in pairs, such as the connection between pipes, the connection between mechanical arms, or the connection between shaft structures. The split floating joint 30 has the characteristics of good connection stability and convenient assembly and disassembly.

[0034] Reference Figures 1 to 5 The split floating joint 30 includes a connector 1, a first fixing member 2 and a second fixing member 3. The connector 1 has a mounting hole 11, which is extended along the thickness direction of the connector 1 itself. The mounting hole 11 is used to mount the piston rod of the cylinder 10 of the jacking device 100. The circumferential side wall of the connector 1 is provided with an annular groove 12, and the connector 1 has an abutment end 13 along the thickness direction.

[0035] The first fixing member 2 has a first fixing portion 21, and the first fixing member 2 has a second fixing portion 31. The first fixing portion 21 extends into a portion of the annular groove 12, and the second fixing portion 31 extends into another portion of the annular groove 12. The first fixing member 2 and the second fixing member 3 jointly clamp the connecting member 1. The first fixing member 2 and the second fixing member 3 are both used to be fixedly connected to the top plate 20 of the jacking device 100. The first fixing member 2 is also provided with a first accommodating groove 22, and the second fixing member 3 is also provided with a second accommodating groove 32. The first accommodating groove 22 and the second accommodating groove 32 are used to jointly accommodate the abutting end 13 of the connecting member 1.

[0036] The split floating joint 30 adopts a split design, that is, the first fixing member 2 and the second fixing member 3 are both detachably connected to the connecting member 1, and the first fixing portion 21 and the second fixing portion 31 are snap-fitted with the annular groove 12. When the first fixing member 2 and the second fixing member 3 are fixedly connected to the external structure, the first fixing member 2 and the second fixing member 3 cooperate together to form a constraint on the connecting member 1, thereby assembling the first fixing member 2, the second fixing member 3 and the connecting member 1 together. In the subsequent maintenance, overhaul or replacement of the split floating joint 30, it is only necessary to disassemble the first fixing member 2 or the second fixing member 3 to release the constraint on the connecting member 1, thereby realizing rapid replacement of parts, thereby providing convenience for maintenance, overhaul or replacement of the split floating joint 30.

[0037] It can be understood that, by snapping together the first fixing portion 21 and the second fixing portion 31 with the annular groove 12, the first fixing member 2 and the second fixing member 3 are detachably connected to the connecting member 1 without the aid of structures such as screws or bolts. The connection method is simple, reliable and effective, which greatly facilitates the disassembly and assembly of the split floating joint 30.

[0038] The center line of the mounting hole 11 is arranged to coincide with the axis of the connector 1. This arrangement ensures that when the piston rod of the cylinder 10 is connected to the connector 1, the direction of the driving force of the piston rod and the force point are in a straight line, so that the split floating joint 30 can better play a connecting role and improve the stability and smoothness of the connection.

[0039] Reference Figures 1 to 5 The abutting end 13 has two arcuate side walls 131, and the two arcuate side walls 131 are arranged back to back. The first accommodating groove 22 is formed with a first arcuate groove wall 221, and the second accommodating groove 32 is formed with a second arcuate groove wall 321. One of the two arcuate side walls 131 abuts and cooperates with the first arcuate groove wall 221, and the other abuts and cooperates with the second arcuate groove wall 321.

[0040] Such a configuration helps to enhance the connection adaptability between the first fixing member 2 and the connecting member 1 , and the connection adaptability between the second fixing member 3 and the connecting member 1 , so as to better improve the structural performance of the split floating joint 30 and increase the connection stability of the split floating joint 30 .

[0041] The connecting member 1 has two planar side walls 132, which are arranged opposite to each other. The first receiving groove 22 is formed with two first limiting planar walls 222, which are arranged opposite to each other. The second receiving groove 32 is formed with two second limiting planar walls 322, which are arranged opposite to each other. One of the two first limiting planar walls 222 and one of the two first limiting planar walls 222 are both in abutment with one of the two planar side walls 132, and the other of the two first limiting planar walls 222 and the other of the two first limiting planar walls 222 are both in abutment with the other of the two planar side walls 132.

[0042] Under the premise of ensuring the convenience of disassembly and assembly of the split floating joint 30, the possibility of excessive looseness between the first fixing member 2, the second fixing member 3 and the connecting member 1 is effectively reduced through the planar contact cooperation between the first fixing member 2 and the connecting member 1, and the planar contact cooperation between the first fixing member 2 and the connecting member 1. This can not only ensure the connection floatability of the split floating joint 30, but also further improve the structural stability of the split floating joint 30.

[0043] Continue to refer to Figures 1 to 5 The first fixing portion 21 forms two first abutting flat walls 211, which are arranged opposite to each other, and the second fixing portion 31 forms two second abutting flat walls 311, which are arranged opposite to each other. The two first abutting flat walls 211 and the two groove walls of the annular groove 12 are arranged opposite to each other in a one-to-one planar abutment and fit, and the two second abutting flat walls 311 and the two groove walls of the annular groove 12 are arranged opposite to each other in a one-to-one planar abutment and fit.

[0044] The first fixing part 21 contacts and cooperates with the groove wall of the annular groove 12, and the second fixing part 31 contacts and cooperates with the groove wall of the annular groove 12, so that the smoothness of movement can be increased. For example, the piston rod of the cylinder 10 is connected to the connecting member 1, and the first fixing member 2 and the second fixing member 3 are both fixedly connected to the top plate 20. When the cylinder 10 pushes the top plate 20 to move through the split floating joint 30, the first fixing part 21 contacts and cooperates with the groove wall of the annular groove 12, and the second fixing part 31 contacts and cooperates with the groove wall of the annular groove 12, which helps to improve the smoothness of the overall movement of the lifting plate, effectively reducing the possibility of shaking during the movement of the lifting plate, thereby better improving the fit between the battery fixture and the upper cover plate, and improving the sealing between the battery fixture and the upper cover plate.

[0045] The first fixing portion 21 and the second fixing portion 31 are both matched with the groove bottom clearance of the annular groove 12. Such an arrangement ensures the floatability between the connecting member 1 and the first fixing member 2 and the second fixing member 3, and can effectively reduce the structural wear between the connecting member 1 and the first fixing member 2 and the second fixing member 3, so as to extend the service life of the split floating joint 30.

[0046] The first fixing portion 21 and the second fixing portion 31 are arranged in an arc shape, so as to be adaptable and connected to the connecting member 1 , thereby enhancing the connection stability between the first fixing member 2 and the connecting member 1 , and between the second fixing member 3 and the connecting member 1 .

[0047] Continue to refer to Figures 1 to 5 The first fixing member 2 is provided with a plurality of first bolt holes 23, and the second fixing member 3 is provided with a plurality of second bolt holes 33. The plurality of first bolt holes 23 are all distributed circumferentially and are all arranged close to the edge of the first accommodating groove 22; the plurality of second bolt holes 33 are all distributed circumferentially and are all arranged close to the edge of the second accommodating groove 32.

[0048] With such arrangement, both the first fixing member 2 and the second fixing member 3 can be fixedly connected to other structural members by bolts, so as to ensure the connection stability between the first fixing member 2 and the second fixing member 3 and other structures.

[0049] The utility model further provides a jacking device. Referring to the figure, the jacking device 100 includes a cylinder 10, a top plate 20 and a split floating joint 30. The piston rod of the cylinder 10 is connected to the top plate 20 through the split floating joint 30.

[0050] Specifically, the piston rod of the cylinder 10 is inserted into or passes through the mounting hole 11 and is connected to the connecting member 1 through a pin, and the first fixing member 2 and the second fixing member 3 are both fixedly connected to the top plate 20 through bolts. The cylinder 10 drives the top plate 20 to move through the split floating joint 30 to achieve lifting or lowering of the top plate 20.

[0051] The specific structure of the split floating joint 30 refers to the above embodiments. Since the jacking device 100 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0052] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A split floating joint, used in a jacking device, characterized in that: The split floating joint comprises a connecting member, a first fixing member and a second fixing member; The connecting member has a mounting hole, which is extended along the thickness direction of the connecting member itself, and the mounting hole is used to install the piston rod of the cylinder of the jacking device. The circumferential side wall of the connecting member is provided with an annular groove, and the connecting member has an abutment end along the thickness direction; The first fixing member has a first fixing portion, and the first fixing member has a second fixing portion, the first fixing portion extends into a portion of the annular groove, and the second fixing portion extends into another portion of the annular groove, the first fixing member and the second fixing member jointly clamp the connecting member, and the first fixing member and the first fixing member are both used to be fixedly connected to the top plate of the jacking device, the first fixing member is also provided with a first accommodating groove, and the second fixing member is also provided with a second accommodating groove, and the first accommodating groove and the second accommodating groove are used to jointly accommodate the abutting end of the connecting member.

2. The split floating joint according to claim 1, characterized in that: The center line of the mounting hole is arranged to coincide with the axis center line of the connecting member.

3. The split floating joint according to claim 1, characterized in that: The abutting end has two arcuate side walls, which are arranged back to back. The first accommodating groove is formed with a first arcuate groove wall, and the second accommodating groove is formed with a second arcuate groove wall. One of the two arcuate side walls abuts and cooperates with the first arcuate groove wall, and the other abuts and cooperates with the second arcuate groove wall.

4. The split floating joint according to claim 1, characterized in that: The connecting member has two plane side walls, the two plane side walls are arranged back to back, the first accommodating groove is formed with two first limiting plane walls, the two first limiting plane walls are arranged opposite to each other, and the second accommodating groove is formed with two second limiting plane walls, the two second limiting plane walls are arranged opposite to each other; One of the two first limiting plane walls and one of the two first limiting plane walls both abut against one of the two planar side walls, and the other of the two first limiting plane walls and the other of the two first limiting plane walls both abut against the other of the two planar side walls.

5. The split floating joint according to claim 1, characterized in that: The first fixing portion forms two first abutting flat walls, the two first abutting flat walls are arranged opposite to each other, and the second fixing portion forms two second abutting flat walls, the two second abutting flat walls are arranged opposite to each other; The two first abutting flat walls are in one-to-one planar abutment with two groove walls opposite to the annular groove, and the two second abutting flat walls are in one-to-one planar abutment with two groove walls opposite to the annular groove.

6. The split floating joint according to claim 1, characterized in that: The first fixing portion and the second fixing portion are both loosely matched with the groove bottom of the annular groove.

7. The split floating joint according to claim 1, characterized in that: The first fixing portion and the second fixing portion are arranged in an arc shape.

8. The split floating joint according to claim 1, characterized in that: The first fixing member is provided with a plurality of first bolt holes, and the second fixing member is provided with a plurality of second bolt holes.

9. The split floating joint according to claim 8, characterized in that: The plurality of first bolt holes are all distributed circumferentially and are all arranged close to the edge of the first receiving groove; the plurality of second bolt holes are all distributed circumferentially and are all arranged close to the edge of the second receiving groove.

10. A lifting device, characterized in that: The lifting device comprises a cylinder, a top plate and a split floating joint as described in any one of claims 1 to 9, and a piston rod of the cylinder is connected to the top plate through the split floating joint.

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