CN214996466U

CN214996466U - Chain connecting device and parking equipment

Info

Publication number: CN214996466U
Application number: CN202121004421.3U
Authority: CN
Inventors: 刘恒; 苏柱文; 黄楚燕
Original assignee: GUANGZHOU GOLRI AUTOMATIC PARKING CO LTD
Current assignee: GUANGZHOU GOLRI AUTOMATIC PARKING CO LTD
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-12-03
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a connecting device of a chain and parking equipment, the connecting device of the chain comprises a chain connecting piece and a chain tensioning piece, the chain connecting piece comprises a head end and a tail end, the head end is used for being fixedly connected with a main hoisting chain, and the tail end is used for being fixedly connected with a secondary hoisting chain; one end of the chain tensioning piece is connected to the tail end in an adjustable and elastic manner, and the other end of the chain tensioning piece is fixedly connected with the circulating chain; when the secondary lifting chain is in a load bearing state, the chain tensioning piece is tightened to a closed loop chain formed by the circulating chain and the main lifting chain for locking; when the secondary lifting chain is in an unloaded state, the chain tensioning piece is loosened to loosen the closed-loop chain formed by the circulating chain and the main lifting chain. Chain connecting piece and the integrated setting of chain tensioning piece realize the function of chain connection and chain tensioning simultaneously, avoid the chain to promote loose fragmentary of tensioning structure, required spare part when reducing the installation. The parking equipment has a more concise and compact overall structure, is convenient to install and has a reasonable and reliable bearing structure.

Description

Chain connecting device and parking equipment

Technical Field

The utility model relates to a chain drive field especially relates to a connecting device and parking equipment of chain.

Background

At present, in the lifting and transverse moving type parking equipment in the market, a chain connecting piece with three supports is generally adopted in a chain lifting and tensioning structure, the shape of the chain connecting piece is similar to a triangle, a top end connecting hole is connected with a main lifting chain, three connecting holes are formed in tail end shunting and are sequentially connected with a front lifting point chain, a rear lifting point chain and a circulating chain, a chain guide device is combined to be respectively connected with a tensioning piece at the end of the circulating chain, the circulating chain is connected with the main lifting chain to form a closed-loop chain, and finally the tensioning function is realized by loosening and locking the tensioning piece. The existing integral structure is loose and broken, the size of a single part is large, the part needs to be additionally added in a circulating chain segment to realize a tensioning function, the integral structure is not concise, and the types of installation elements are increased. Therefore, it is a trend to design a chain connecting device with tensioning function, integrated structure and simplified overall appearance.

SUMMERY OF THE UTILITY MODEL

The structure that traditional chain promoted the tensioning is comparatively loose fragmentary, and single spare part is bulky, needs additionally to increase spare part at the circulation chain segment and realizes the tensioning function, causes overall structure not succinct, and installation component kind also increases to some extent, based on this, is necessary to provide a connecting device and parking equipment of chain, makes the compact structure of chain promotion tensioning reaches the succinct effect of structure integration outward appearance.

The specific technical scheme is as follows:

in one aspect, the present application relates to a chain connecting device comprising a chain connecting member and a chain tensioning member, the chain connecting member comprising a head end and a tail end, the head end being configured to be fixedly connected to a primary lifting chain and the tail end being configured to be fixedly connected to a secondary lifting chain; one end of the chain tensioning piece is connected with the tail end in an adjustable and elastic mode, and the other end of the chain tensioning piece is used for being fixedly connected with the circulating chain.

When the connecting device of the chain is used, the chain connecting piece and the chain tensioning piece are integrally arranged, and the main lifting chain is connected with the circulating chain in an adjustable elastic mode through the chain connecting piece and the chain tensioning piece. Main lifting chain, inferior lifting chain and circulation chain pass through the chain connecting piece and realize connecting, can realize the function of chain connection and chain tensioning simultaneously through the tensioning of the closed loop chain that regulation chain tensioning spare adjustment circulation chain and main lifting chain formed at the tail end of chain connecting piece, avoid the chain to promote loose fragmentary of tensioning structure, spare parts such as required support or sprocket when having reduced the installation, overall structure is compacter integrated more, and the outward appearance is more succinct.

The technical solution is further explained below:

in one embodiment, the chain-tensioning member comprises a telescopic member, one end of which is connected to the tail end and the other end of which is used for fixed connection with the endless chain, the telescopic member being telescopically arranged at the tail end. Through shortening the extensible member, make closed loop chain realizes locking, through extension the extensible member makes closed loop chain realizes loosening.

In one embodiment, the chain tensioner comprises an adjusting bolt and an adjusting nut, wherein one end of the adjusting bolt is used for being fixedly connected with the circulating chain, and the other end of the adjusting bolt is arranged on the tail end in a penetrating mode and is adjustably connected to the tail end through the adjusting nut. One end of the adjusting nut is connected to the circulating chain, the other end of the adjusting bolt penetrates through the tail end and is screwed into the adjusting nut to be screwed, the length of the adjusting bolt is the length of the closed-loop chain, the tightness of the closed-loop chain can be adjusted, the adjusting nut is screwed in the direction close to the circulating chain, the screwing-out length of the adjusting bolt is increased, the length of the closed-loop chain is reduced, and the closed-loop chain is locked; and screwing out the adjusting nut in the direction far away from the circulating chain, reducing the screwing-out length of the adjusting bolt, and increasing the length of the closed-loop chain to enable the closed-loop chain to be loosened.

In one embodiment, the chain connector further includes a connecting seat disposed at the tail end, the connecting seat is provided with a through hole, and the adjusting bolt is disposed through the through hole. When inferior lifting chain is in the heavy burden state, inferior lifting chain gives the pulling force that the chain connecting piece extended to the tail end earlier on, transmits the pulling force to the circulation chain through setting up the connecting seat, and whole chain wiring mode is orderly and compact, and the atress is rational in infrastructure, is convenient for the connecting device's of chain installation.

In one embodiment, the connecting device of the chain further comprises a shaft sleeve, the shaft sleeve is inserted into the through hole, the adjusting bolt penetrates through the shaft sleeve, and the length of the shaft sleeve is greater than that of the through hole. When secondary lifting chain bears a burden, the chain connecting piece receives the trend of removing to the tail end, because the length of axle sleeve is greater than fenestrate length, makes the chain connecting piece has certain swing space, avoids the chain connecting piece only will come and go the effort and transmit to adjusting bolt through a contact point on, lead to adjusting bolt deformation or fracture.

On the other hand, the application also provides parking equipment, which comprises the connecting device of the chain in any one of the embodiments, a transmission assembly and a vehicle carrying plate, wherein the transmission assembly comprises a chain wheel, a main lifting chain, a secondary lifting chain and a circulating chain, one end of the main lifting chain is connected to the head end, one end of the circulating chain is connected to the tail end through the chain tensioning piece, and the other end of the circulating chain is connected with the other end of the main lifting chain to form a closed-loop chain; one end of the secondary lifting chain is connected to the tail end, the other end of the secondary lifting chain is connected to the car carrying plate, the chain wheel is in transmission fit with the main lifting chain, the secondary lifting chain and the circulating chain, and the closed-loop chain rotates to pull the secondary lifting chain and drives the car carrying plate to lift.

Through the integrated setting of spare part that is used for the chain to connect on with parking equipment of connecting device of chain makes parking equipment's overall structure is succinct compacter, just the connecting device of chain realizes the function of chain connection and chain tensioning simultaneously, is convenient for parking equipment's installation, and load structure is reasonable reliable. The circulation chain realizes that the main lifting chain is in a locking state when the vehicle carrying plate is lifted, so that the transmission efficiency of the main lifting chain is ensured, and the chain falling is avoided.

In one embodiment, the secondary lifting chain comprises a front lifting chain and a rear lifting chain, one end of the front lifting chain and one end of the rear lifting chain are connected to the tail end through the chain tensioning piece, the other end of the front lifting chain is fixedly connected with the front end of the car carrying plate, and the other end of the rear lifting chain is fixedly connected with the rear end of the car carrying plate. The balance of the vehicle-carrying plate in the operation process of the parking equipment is ensured by arranging the front lifting chain and the rear lifting chain, and the bearing structure is reasonable and reliable.

In one embodiment, the parking equipment further comprises a fixed frame and a driving device, wherein the fixed frame comprises two longitudinal beams, two cross beams and four stand columns, the two longitudinal beams and the two cross beams are connected end to form a square frame, one stand column is fixedly connected to each end angle of the square frame, the vehicle carrying plate is arranged between the square frames, the chain wheel is rotatably connected to the longitudinal beams, and the driving device drives the transmission assembly to rotate so as to drive the vehicle carrying plate to perform lifting reciprocating motion in the fixed frame.

In one embodiment, the parking device further comprises a chain guide assembly, the chain guide assembly comprises a front lifting support and a rear lifting support, the front lifting support and the rear lifting support are respectively connected to two ends of the longitudinal beam, the number of the chain wheels is multiple, the front lifting support and the rear lifting support are respectively provided with at least one chain wheel, the front lifting chain is in transmission connection with the chain wheel of the front lifting support, and the rear lifting chain is in transmission connection with the chain wheel of the rear lifting support. Through promote chain and back lifting chain can with the plumb line direction hoist respectively before leading the chain subassembly to realize in carry the front end and the rear end of sweep, when carrying the sweep lift, the prerequisite is promoted the chain and is given with the back lifting chain carry the vertical lifting force of sweep, it is reliable to promote the structure, and the balance quality is better, avoids appearing carrying sweep landing or front and back unbalance scheduling problem.

In one embodiment, the chain guide assembly further comprises a top chain support connected to a middle portion of the longitudinal beam, the top chain support and the front lifting support are closer to the tail end relative to the head end, and the rear lifting chain is in transmission fit with a sprocket of the top chain support along a sprocket of the rear lifting support. The top chain support has improved the wiring rationality of inferior lifting chain and circulation chain makes the atress direction of inferior lifting chain and circulation chain is stable, just back lifting chain passes through the top chain support can realize earlier with preceding lifting chain syntropy wiring, the sprocket back on the chain support of process top is adjusted back again with the cooperation of the sprocket on the back lifting support, the atress direction of back lifting chain is reasonable, the good reliability.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention in any way.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Furthermore, the drawings are not to scale of 1:1, and the relative dimensions of the various elements in the drawings are drawn only by way of example and not necessarily to true scale.

Fig. 1 is a front view of a cross member connecting structure in a parking apparatus according to an embodiment;

FIG. 2 is a schematic view of a connecting device for a chain according to an embodiment;

fig. 3 is a plan view of a cross member connecting structure in the parking apparatus according to the embodiment.

Description of reference numerals:

10. a connecting device for the chain; 100. a chain connecting piece; 110. a head end; 120. a tail end; 130. a connecting seat; 200. a chain tensioner; 210. adjusting the bolt; 220. adjusting the nut; 300. a shaft sleeve;

20. a parking device; 400. a transmission assembly; 410. a main hoisting chain; 420. a secondary lifting chain; 422. a front hoist chain; 424. a rear lifting chain; 430. a circulating chain; 440. a sprocket; 500. a stringer; 600. a chain guide assembly; 610. a front lifting support; 620. lifting the support; 630. a top chain support.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1, the parking apparatus 20 in one embodiment includes a fixed frame, a transmission assembly 400, a chain connecting device 10, and a vehicle carrying board, both of which are not shown. The driving assembly 400 comprises a chain wheel 440, a main lifting chain 410, a secondary lifting chain 420 and an endless chain 430, wherein the chain wheel 440 is rotatably connected to the fixed frame, the secondary lifting chain 420 is connected to the vehicle carrying plate, and the main lifting chain 410, the secondary lifting chain 420 and the endless chain 430 realize chain connection and chain tensioning functions through the chain connecting device 10. After the secondary lifting chain 420 bears the load, the closed chain formed by enclosing the main lifting chain 410 and the circulating chain 430 is tightened through the connecting device 10 of the chain, and then the closed chain is driven to rotate to pull the secondary lifting chain 420 and drive the vehicle carrying plate to lift. The circulation chain 430 realizes that the main lifting chain 410 is in a locking state when the vehicle carrying plate is lifted, ensures the transmission efficiency of the main lifting chain 410, and avoids the occurrence of chain dropping. The connecting device 10 of the chain integrates the parts for chain connection on the parking equipment 20, so that the whole structure of the parking equipment 20 is more concise and compact, the connecting device 10 of the chain simultaneously realizes the functions of chain connection and chain tensioning, the parking equipment 20 is convenient to install, and the force bearing structure is reasonable and reliable.

Specifically, the closed-loop chain refers to a chain in which the main hoisting chain 410 and the endless chain 430 enclose a closed loop. One end of the main lifting chain 410 is connected to one end of the endless chain 430 by the chain connecting device 10, and the other end of the main lifting chain 410 is connected to the other end of the endless chain 430.

With continued reference to fig. 1, in particular, the chain connecting device 10 includes a chain connecting member 100 and a chain tensioner member 200, the chain connecting member 100 including a head end 110 and a tail end 120, the head end 110 for fixed connection with a primary lifting chain 410 and the tail end 120 for fixed connection with a secondary lifting chain 420; one end of the main lifting chain 410 is connected to the head end 110, one end of the endless chain 430 is connected to the tail end 120 through the chain tensioner 200, and the other end of the endless chain 430 is connected to the other end of the main lifting chain 410 to form a closed-loop chain; one end of the secondary lifting chain 420 is connected to the tail end 120, the other end of the secondary lifting chain 420 is connected to the vehicle carrying plate, and the chain wheel 440 is in transmission fit with the main lifting chain 410, the secondary lifting chain 420 and the circulating chain 430. One end of the chain tensioner 200 is adjustably and loosely connected to the tail end 120, and the other end of the chain tensioner 200 is adapted to be fixedly connected to the endless chain 430; when the secondary lifting chain 420 is in a loaded state, the chain tensioner 200 tightens to the closed loop chain lock formed by the endless chain 430 and the primary lifting chain 410; when the secondary lift chain 420 is in an unloaded state, the chain tensioner 200 is slack to release the closed loop formed by the endless chain 430 and the primary lift chain 410.

When the chain connecting device 10 is used, the chain connecting piece 100 and the chain tensioning piece 200 are integrally arranged, and the main lifting chain 410 is connected with the circulating chain 430 in an adjustable and elastic mode through the chain connecting piece 100 and the chain tensioning piece 200. Main lifting chain 410, inferior lifting chain 420 and circulation chain 430 realize connecting through chain connecting piece 100, can adjust the tensioning of the closed loop chain that circulation chain 430 and main lifting chain 410 formed through adjusting chain tensioning piece 200 at the tail end 120 of chain connecting piece 100, realize the function of chain connection and chain tensioning simultaneously, avoid the chain to promote loose fragmentary of tensioning structure, spare parts such as required support or sprocket 440 when having reduced the installation, overall structure is compacter to integrate, the outward appearance is more succinct.

Optionally, the chain tensioning member comprises a telescopic member, one end of the telescopic member is connected to the tail end 120, the other end of the telescopic member is used for fixedly connecting with the endless chain 430, and the telescopic member is telescopically arranged at the tail end 120. Through shortening the extensible member for closed loop chain realizes locking, through extension extensible member, makes closed loop chain realize unclamping. The telescopic piece can be driven by hydraulic pressure or a motor to realize telescopic. The chain tensioner may also be configured as a slider, rack engaging assembly, or the like to provide an adjustable, slack connection between the chain connector 100 and the chain tensioner 200.

Referring to fig. 1, preferably, the chain tensioner 200 includes an adjusting bolt 210 and an adjusting nut 220, wherein one end of the adjusting bolt 210 is used for being fixedly connected with the endless chain 430, and the other end of the adjusting bolt 210 is inserted into the tail end 120 and is adjustably connected to the tail end 120 through the adjusting nut 220. One end of the adjusting nut 220 is connected to the circulating chain 430, the other end of the adjusting bolt 210 is threaded on the tail end 120 and then screwed into the adjusting nut 220 to be screwed tightly, the adjusting nut 220 is screwed in the direction close to the circulating chain 430, the screwing-out length of the adjusting bolt 210 is increased, and the length of the closed-loop chain is reduced, so that the closed-loop chain is locked; the adjusting nut 220 is screwed out in the direction away from the endless chain 430, the screwing-out length of the adjusting bolt 210 is reduced, and the length of the closed-loop chain is increased, so that the closed-loop chain is loosened.

Referring to fig. 2, preferably, the number of the adjusting nuts 220 is two, after the adjusting bolts 210 are inserted into the through holes, the adjusting nuts 220 are connected to the adjusting bolts 210 at the two ends of the connecting seat 130, so as to improve the connection stability of the chain of the parking equipment 20 during the lifting operation, avoid the problems of chain dropping and the like caused by vibration, when the tightness is adjusted, the adjusting nut 220 at one end needs to be adjusted, and after the chain connecting piece 100 is moved, the adjusting nut 220 at the other end is screwed.

Referring to fig. 2, the parking apparatus 20 further includes a fixing frame and a driving device, the fixing frame includes two longitudinal beams 500, two cross beams and four upright columns, the two longitudinal beams 500 and the two cross beams are connected end to form a square frame, each end corner of the square frame is fixedly connected with one upright column, the vehicle carrying board is disposed between the square frames, the chain wheel 440 is rotatably connected to the longitudinal beams 500, and the driving device drives the transmission assembly 400 to rotate so as to drive the vehicle carrying board to perform reciprocating motion in the fixing frame. The fixed frame is the minimum unit of the parking device 20, a plurality of fixed frames can be arranged according to the requirement, or a plurality of layers of fixed frames are formed by a plurality of longitudinal beams 500, a plurality of cross beams and a plurality of upright posts, and each layer of frame can be provided with a plurality of parking spaces.

With continued reference to fig. 2, the direction of the arrow is shown as the longitudinal direction of stringer 500. In some embodiments, the chain connector 100 further includes a connecting seat 130, the connecting seat 130 is disposed at the tail end 120, the connecting seat 130 is formed with a through hole, and the adjusting bolt 210 is disposed through the through hole. Specifically, the axial direction of the through hole is parallel to the longitudinal direction of the longitudinal beam 500, when the secondary lifting chain 420 is in a loaded state, the secondary lifting chain 420 gives a pulling force to the chain connecting piece 100 to extend to the tail end 120, and the axial direction of the through hole is parallel to the longitudinal direction of the longitudinal beam 500, so that the circulating chain 430 is parallel to the longitudinal direction of the longitudinal beam 500 after being connected with the chain connecting piece 100, the chain wiring mode is orderly and compact, the stress structure is reasonable, and the chain connecting device 10 is convenient to install. When the secondary lifting chain 420 is in a loaded state, the force receiving direction of the adjusting bolt 210 is the same as the penetrating direction of the adjusting bolt 210, so that the problems that the adjusting bolt 210 is deformed or the adjusting nut 220 is loosened and the like caused by the component force of the chain tensioning member 200 in other directions are avoided.

With continued reference to fig. 2, in some embodiments, the connecting device 10 of the chain further includes a bushing 300, the bushing 300 is inserted into the through hole, the adjusting bolt 210 is inserted through the bushing 300, the length of the bushing 300 is greater than that of the through hole, and the adjusting nut 220 abuts against the bushing 300 when the lifting chain is in a load-bearing state. When the secondary lifting chain 420 bears a load, the chain link 100 is subject to a tendency to move toward the tail end 120, and since the length of the bushing 300 is greater than that of the through hole, the chain link 100 has a certain swing space, so that the chain link 100 is prevented from transmitting a reciprocating force to the adjusting bolt 210 through only one contact point, and the adjusting bolt 210 is prevented from being deformed or broken.

Referring to fig. 1, specifically, the secondary lifting chain 420 includes a front lifting chain 422 and a rear lifting chain 424, one end of the front lifting chain 422 and one end of the rear lifting chain 424 are both connected to the tail end 120 through a chain tensioning member 200, the other end of the front lifting chain 422 is fixedly connected to the front end of the vehicle carrying board, and the other end of the rear lifting chain 424 is fixedly connected to the rear end of the vehicle carrying board. The balance of the vehicle carrying plate in the operation process of the parking equipment 20 is ensured by arranging the front lifting chain 422 and the rear lifting chain 424, and the force bearing structure is reasonable and reliable.

Referring to fig. 1 and 3, parking apparatus 20 further includes a chain guide assembly 600, chain guide assembly 600 includes a front lifting support 610 and a rear lifting support 620, front lifting support 610 and rear lifting support 620 are respectively connected to two ends of longitudinal beam 500, a plurality of chain wheels 440 are provided, each of front lifting support 610 and rear lifting support 620 is provided with at least one chain wheel 440, front lifting chain 422 is in transmission connection with chain wheel 440 of front lifting support 610, and rear lifting chain 424 is in transmission connection with chain wheel 440 of rear lifting support 620. The front lifting support 610 and the front end of the vehicle carrying plate are located on the same vertical line, the front lifting chain 422 is hammered and hung at the front end of the vehicle carrying plate through the chain wheel 440 of the front lifting support 610, the rear lifting support 620 and the rear end of the vehicle carrying plate are located on the same vertical line, and the rear lifting chain 424 is hammered and hung at the rear end of the vehicle carrying plate through the chain wheel 440 of the rear lifting support 620. Promote chain 422 and back lifting chain 424 before realizing through leading chain subassembly 600 and can use the plumb line direction to hoist respectively in the front end and the rear end of carrying the sweep, when carrying the sweep lift, the vertical lifting force of carrying the sweep is given to prerequisite lifting chain 422 and back lifting chain 424, and it is reliable to promote the structure, and the balance quality is better, avoids appearing carrying the sweep landing or front and back unbalance scheduling problem.

Referring to fig. 3, in particular, the chain guide assembly 600 further includes a top chain support 630, the top chain support 630 is connected to the middle portion of the longitudinal beam 500, the top chain support 630 and the front lifting support 610 are closer to the tail end 120 than the head end 110, and the rear lifting chain 424 is in driving fit along the chain wheel 440 of the top chain support 630 to the chain wheel 440 of the rear lifting support 620. This top chain support 630 has improved this time lifting chain 420 and circulation chain 430's wiring rationality for when this time lifting chain 420 is in the heavy burden state, this time lifting chain 420 and circulation chain 430's atress direction is in the state that is parallel to each other, and back lifting chain 424 can realize earlier with preceding lifting chain 422 syntropy wiring through top chain support 630, the sprocket 440 back callback on top chain support 630 cooperates with sprocket 440 on the back lifting support 620, the atress direction of back lifting chain 424 is reasonable, high reliability.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A connecting device for a chain, comprising:

the chain connecting piece comprises a head end and a tail end, the head end is used for being fixedly connected with the main lifting chain, and the tail end is used for being fixedly connected with the secondary lifting chain; and

chain tensioning piece, one of them one end of chain tensioning piece connect in with adjustable elasticity the tail end, the other end of chain tensioning piece be used for with circulation chain fixed connection, main lifting chain with circulation chain encloses and closes the chain that forms the closed loop.

2. A device for connecting a chain according to claim 1, wherein the chain-tensioning member comprises a telescopic member, one end of which is connected to the tail end and the other end of which is intended to be fixedly connected to the endless chain, the telescopic member being telescopically arranged in the tail end.

3. The device for connecting a chain according to claim 1, wherein the chain tensioner comprises an adjusting bolt and an adjusting nut, wherein one end of the adjusting bolt is used for being fixedly connected with the endless chain, and the other end of the adjusting bolt is inserted into the tail end and is adjustably connected to the tail end through the adjusting nut.

4. The device for connecting a chain according to claim 3, wherein the chain connector further comprises a connecting seat, the connecting seat is disposed at the tail end, the connecting seat is formed with a through hole, and the adjusting bolt is inserted into the through hole.

5. The device for connecting a chain as claimed in claim 4, further comprising a bushing inserted into the through hole, wherein the adjusting bolt is inserted through the bushing, and the length of the bushing is greater than the length of the through hole.

6. Parking installation, comprising a chain connecting device according to any one of claims 1 to 5, further comprising a transmission assembly and a vehicle loading plate, the transmission assembly comprising a sprocket wheel, a main hoisting chain, a secondary hoisting chain and an endless chain, one end of the main hoisting chain being connected to the head end, one end of the endless chain being connected to the tail end by means of the chain tensioner, the other end of the endless chain being connected to the other end of the main hoisting chain to form a closed loop chain; one end of the secondary lifting chain is connected to the tail end, the other end of the secondary lifting chain is connected to the car carrying plate, the chain wheel is in transmission fit with the main lifting chain, the secondary lifting chain and the circulating chain, and the closed-loop chain rotates to pull the secondary lifting chain and drives the car carrying plate to lift.

7. The parking apparatus according to claim 6, wherein the secondary lifting chain comprises a front lifting chain and a rear lifting chain, one end of the front lifting chain and one end of the rear lifting chain are both connected to the tail end through the chain tensioning member, the other end of the front lifting chain is fixedly connected to the front end of the vehicle carrying plate, and the other end of the rear lifting chain is fixedly connected to the rear end of the vehicle carrying plate.

8. The parking device according to claim 7, further comprising a fixed frame and a driving device, wherein the fixed frame comprises two longitudinal beams, two cross beams and four upright posts, the two longitudinal beams and the two cross beams are connected end to form a square frame, one upright post is fixedly connected to each end corner of the square frame, the vehicle carrying plate is arranged between the square frames, the chain wheel is rotatably connected to the longitudinal beams, and the driving device drives the transmission assembly to rotate so as to drive the vehicle carrying plate to move up and down in the fixed frame.

9. The parking apparatus of claim 8, further comprising a chain guide assembly, wherein the chain guide assembly comprises a front lifting support and a rear lifting support, the front lifting support and the rear lifting support are respectively connected to two ends of the longitudinal beam, the number of the chain wheels is multiple, at least one chain wheel is arranged on each of the front lifting support and the rear lifting support, the front lifting chain is in transmission connection with the chain wheel of the front lifting support, and the rear lifting chain is in transmission connection with the chain wheel of the rear lifting support.

10. The parking apparatus of claim 9 wherein the chain guide assembly further comprises a top chain support connected to a middle portion of the longitudinal beam, the top chain support and the front lift support being closer to the rear end than the head end, the rear lift chain being in driving engagement along a sprocket of the top chain support to a sprocket of the rear lift support.