Three-section type hoop

Abstract

The utility model provides a three-petal type hoop which comprises a half hoop, a half hoop body, a half hoop body and a half hoop body. The two half hoops are hinged to the two ends of the half hoops respectively; the half hoops and the two petal hoops are enclosed to sleeve a column body; a locking piece is arranged between the ends, capable of abutting against each other, of the two petal hoops. The locking piece comprises a locking seat and a spring bolt, wherein the locking seat is provided with an inner cavity, a locking hole communicated with the inner cavity is formed in one side face of the locking seat, and the spring bolt is connected with a rotating shaft, can be inserted into the inner cavity through the locking hole and then rotates along with the rotating shaft to be clamped in the inner cavity. The driving piece is arranged outside the rotating shaft in a sleeving manner and is used for adjusting the rotation of the rotating shaft along with the screwing of the two petal hoops; and the locking seat and the driving piece are respectively connected with the two valve hoops. The three-petal type hoop has the effect of improving the use convenience of the three-petal type hoop.

Description

Technical Field

[0001] The utility model relates to the technical field of hoop, in particular to a three-piece hoop. Background Art

[0002] Due to the rolling property of cylindrical products, special storage equipment is required for storage. Through research on storage equipment for cylindrical products, it is found that there are two common forms of storage equipment in the market: with or without hoops. The form without hoops, such as wedge block limit storage, limits the cylinder in the circumferential direction; the form with hoops is to set a hoop on the cylindrical product. If the outer circumference of the hoop is non-circular, the cylinder with the hoop will no longer roll; if the outer circumference of the hoop is circular, the hoop is convenient for lifting the cylindrical product to place the hoop on other carriers without rolling property.

[0003] In the related art, according to the different forms of the hoop, it can be divided into upper and lower semi-hoops or three-piece hoops; when using the upper and lower semi-hoops, the upper semi-hoop usually needs to be lifted off, which is cumbersome to operate and risky during hoisting; the three-piece hoop also has the problem of cumbersome operation. Summary of the Utility Model

[0004] In view of this, the utility model aims to provide a three-piece hoop to improve the convenience of use.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows: A three-piece hoop includes:

[0006] A semi-hoop; and two-piece hoops respectively hinged to both ends of the semi-hoop; the semi-hoop and the two-piece hoops enclose to set on a cylinder;

[0007] A locking member is arranged between the ends of the two-piece hoops that can be in contact; the locking member includes:

[0008] A locking seat having an inner cavity and a locking hole communicated with the inner cavity on one side surface thereof, a locking tongue connected with a rotating shaft and capable of being inserted into the inner cavity through the locking hole and then clamped in the inner cavity as the rotating shaft rotates, and a driving member sleeved outside the rotating shaft and adjusting the rotation of the rotating shaft as the two-piece hoops are screwed together;

[0009] The locking seat and the driving member are respectively connected with the two-piece hoops.

[0010] Furthermore, the two-piece hoops are arranged with a gap;

[0011] The driving member includes:

[0012] The first guide sleeve can slide axially along the rotating shaft and is sleeved outside the rotating shaft. A first reversing groove is provided on the end face of the first guide sleeve facing away from the locking tongue; the first reversing groove is a groove with a guiding surface that is opened along the positive circumferential direction of the first guide sleeve and gradually towards the end closer to the locking tongue; four groups of the first reversing grooves are provided and distributed along the circumferential direction of the first guide sleeve to achieve end-to-end closed connection of multiple first reversing grooves;

[0013] The second guide sleeve can slide axially along the rotating shaft and is sleeved outside the rotating shaft. The second guide sleeve is located on the side of the first guide sleeve facing away from the locking tongue and is spaced from the first guide sleeve; a second reversing groove is provided on the end face of the second guide sleeve close to the first guide sleeve; the second reversing groove is a groove with a guiding surface that is opened along the reverse circumferential direction of the second guide sleeve and gradually towards the end away from the locking tongue; the second reversing groove and the first reversing groove are staggeredly corresponding;

[0014] The fixed shell is sleeved and fixedly connected outside the first guide sleeve and the second guide sleeve, and the fixed shell is connected to the petal hoop;

[0015] The elastic member is sleeved outside the rotating shaft and is located inside the second guide sleeve to enable the adjustment of the circumferential sliding of the fixed shell along the rotating shaft;

[0016] The reversing column is vertically and fixedly connected to the rotating shaft; and has a first state in which the reversing column is clamped in the first reversing groove when the fixed shell approaches the locking tongue; and has a second state in which the reversing column is clamped in the second reversing groove when the fixed shell moves away from the locking tongue.

[0017] Furthermore, the elastic member is selected as a spring.

[0018] Furthermore, the rotating shaft has a convex portion, and a thrust roller bearing is sleeved outside the rotating shaft. One end face of the thrust roller bearing abuts against the convex portion, and the remaining end face abuts against the elastic member.

[0019] Furthermore, the side surface of the locking tongue facing away from the rotating shaft is an arc surface.

[0020] Furthermore, an indicating piece is fixedly connected to one end of the rotating shaft facing away from the locking tongue; the indicating piece is parallel to the locking tongue.

[0021] Furthermore, the locking member is connected with a limiting member on one or both sides, and the limiting member includes:

[0022] A limiting seat provided with a limiting groove, a limiting block having a limiting head that can be inserted and adapted in the limiting groove, a sliding seat connecting the limiting block to enable the limiting block to approach or move away from the limiting seat, and an adjusting bolt for adjusting the relative position between the limiting block and the sliding seat.

[0023] Further, self-locking hinge members are provided at the joints where the petal hoops are hinged to the two petal hoops. The self-locking hinge members include:

[0024] A substrate fixedly connected to both ends of the semi-hoop, a rotating plate connected to the petal hoop and hinged to the substrate through a hinge core, a self-locking speed reducer fixedly connected to the substrate and driving the rotating plate to rotate by the hinge core, and a handwheel connected to the input end of the self-locking speed reducer.

[0025] Further, a load-bearing strip is connected to one end of the petal hoop where it is connected to the semi-hoop; a lifting member is provided between the rotating plate and the load-bearing strip. The lifting member includes:

[0026] A stud with its end embedded in the rotating plate, and a nut screwed and sleeved outside the stud; the nut rotatably penetrates through the load-bearing strip, and the convex edge of the nut is embedded and abutted tightly inside the load-bearing strip.

[0027] Further, guiding members are provided on both sides of the lifting member along the length direction of the load-bearing strip. The guiding members include: a guide post with one end fixedly connected to the rotating plate and a guide tube embedded and penetrating through the load-bearing strip, and the guide post is slidably inserted into the guide tube.

[0028] Compared with the prior art, the present utility model has the following advantages:

[0029] For the three-petal type hoop of the present utility model, by providing petal hoops hinged to both ends of the semi-hoop, it is convenient to rotate the petal hoops open when sleeving the hoop outside the column body, and by providing a driving member, the locking tongue rotates as the petal hoops are screwed together to lock in the locking seat, thereby achieving the effect of facilitating the opening and locking of the hoop and improving the convenience of use of the three-petal type hoop.

[0030] By providing a driving member, when the reversing column is in the first state, the locking tongue is locked in the locking hole or is insertable and removable in the locking hole; and when the reversing column is switched between the first state and the second state, the locking tongue turns; by adjusting the reversing column to be in the first state or the second state, the locking or opening of the locking member is adjusted, achieving the effect of convenient use.

[0031] By selecting a spring as the elastic member, it is convenient for the elastic member to be sleeved outside the rotating shaft and the spring has good durability.

[0032] By providing a rotating shaft with a convex portion and arranging a thrust roller bearing between the convex portion and the elastic member, when the rotating shaft rotates, the elastic member can abut against the convex portion and the second guide sleeve. Compared with the direct contact between the elastic member and the convex portion, when adjusting the relative position between the second guide sleeve and the rotating shaft, arranging the thrust roller bearing makes the resistance received by the rotating shaft smaller when it rotates.

[0033] By setting the side of the lock tongue away from the rotating shaft as an arc surface, when the lock tongue abuts against the cavity wall of the inner cavity and the rotating shaft drives the lock tongue to rotate, the contact area between the lock tongue and the locking seat is reduced, thereby reducing the resistance to the rotation of the rotating shaft.

[0034] By arranging an indicator piece at the end of the rotating shaft away from the lock tongue, it is convenient to judge the rotation direction of the lock tongue by observing the rotation direction of the indicator piece; at the same time, the arrangement of the indicator piece facilitates manual rotation of the rotating shaft to adjust the locking or opening of the locking member.

[0035] By providing a limit head inserted in the limit groove, and a sliding seat and an adjusting bolt that can adjust the position relationship between the limit head and the limit seat, when the limit head is inserted in the limit groove, the radial displacement freedom of the two petals of the hoop can be limited, thereby avoiding misalignment of the two petals of the hoop.

[0036] By setting a self-locking reducer to adjust the relative distance between the two end heads of the two petal clamps, the driving member can be driven to switch between the first state and the second state. At the same time, when the state switching is completed, under the action of the self-locking reducer, the possibility of the petal clamp rotating under external force interference can be reduced, thereby improving the stability of the three-petal clamp.

[0037] A lifting part is arranged on the basis of the self-locking hinge, so that when the rotating angle of the rotating plate and the base plate is certain, the opening between the ends of the two petal hoops that can approach each other becomes larger, and then when the opening distance of the two petal hoops is certain, the adjustment of the self-locking hinge can be reduced, which facilitates the use of the three-petal clamp.

[0038] By arranging the guide column and the guide tube, the guiding stability of the screw sleeve and the stud can be improved while the distance between the two-petal hoops and the half hoop is adjusted by using the lifting member, and the shear resistance of the connection between the bearing bar and the rotating plate can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0040] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0041] Figure 2 A cross-sectional view showing the inner cavity of an embodiment of the utility model;

[0042] Figure 3 A cross-sectional view showing a driving component according to an embodiment of the utility model;

[0043] Figure 4 This is a schematic diagram showing some parts of the first guide sleeve in the embodiment of the utility model;

[0044] Figure 5 This is a schematic diagram of some parts showing a thrust roller bearing according to an embodiment of the present utility model;

[0045] Figure 6 This is a part drawing showing a limiting member according to an embodiment of the present utility model;

[0046] Figure 7 This is a schematic diagram of some parts showing a self-locking hinge member according to an embodiment of the present utility model;

[0047] Figure 8 This is a partial part cross-sectional view showing a hinge core according to an embodiment of the present utility model;

[0048] Figure 9 This is a part drawing showing a screw sleeve according to an embodiment of the present utility model;

[0049] Figure 10 This is a cross-sectional view showing a guiding member according to an embodiment of the present utility model.

[0050] Explanation of reference numerals:

[0051] 1. Half hoop;

[0052] 2. Petal hoop;

[0053] 3. Locking member;

[0054] 301. Locking seat; 3011. Inner cavity; 3012. Locking hole; 302. Rotating shaft; 3021. Protruding part; 303. Locking tongue; 304. Driving member; 3041. First guide sleeve; 3041a. First reversing groove; 3042. Second guide sleeve; 3042a. Second reversing groove; 3043. Fixed shell; 3044. Elastic member; 3045. Reversing column;

[0055] 4. Thrust roller bearing;

[0056] 5. Indicator piece;

[0057] 6. Limiting member;

[0058] 601. Limiting seat; 6011. Limiting groove; 602. Limiting block; 6021. Limiting head; 603. Sliding seat; 604. Adjusting bolt;

[0059] 7. Self-locking hinge member;

[0060] 701. Substrate; 702. Rotating plate; 703. Hinge core; 704. Self-locking speed reducer; 705. Handwheel;

[0061] 8. Bearing strip;

[0062] 9. Lifting member;

[0063] 901, Stud; 902, Sleeve; 9021, Flange;

[0064] 10, Guide;

[0065] 1001, Guide Post; 1002, Conduit. Detailed Implementation Manner

[0066] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0067] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0068] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0069] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0070] This embodiment relates to a three-piece hoop to improve the usability of the three-piece hoop.

[0071] In terms of the overall structure, as Figures 1 to 4As shown, the three-petal clamp includes a half clamp 1 arranged in a semicircular ring, and two-petal clamps 2 respectively hinged on the two ends of the half clamp 1, and the half clamp 1 and the two-petal clamp 2 are enclosed to form a circular three-petal clamp to fit the column. The three-petal clamp also includes a locking member 3 arranged between the ends that the two-petal clamps 2 can abut against, and the locking member 3 includes: a locking seat 301 having an inner cavity 3011 and a locking hole 3012 connected to the inner cavity 3011 on one side thereof, a locking tongue 303 connected to the rotating shaft 302 and can be inserted into the inner cavity 3011 through the locking hole 3012 and then clamped in the inner cavity 3011 as the rotating shaft 302 rotates, and a driving member 304 sleeved outside the rotating shaft 302 and adjusting the rotation of the rotating shaft 302 as the two-petal clamps 2 are screwed together; the locking seat 301 and the driving member 304 are respectively connected to the two-petal clamps 2.

[0072] By providing a petal hoop 2 hinged at both ends of the half hoop 1, it is convenient to unscrew the petal hoop 2 when a three-petal hoop is provided on the outer shell of the column, and by providing a driving member 304, the locking tongue 303 is locked in the locking seat 301 as the petal hoop 2 is screwed in, thereby achieving the effect of facilitating the opening and locking of the hoop and improving the convenience of using the three-petal hoop.

[0073] Based on the above overall introduction, Figures 1 to 4 As shown, the half hoop 1 and the petal hoop 2 described in this embodiment are both box structures formed by welding arc plates and vertical plates, that is, the inner ring and the outer ring of the three-petal hoop, and the partition connecting the inner ring and the outer ring and perpendicular to them are all made of arc plates in the shape of arc plates; on the basis of welding the arc plates to form the outer contour of the three-petal hoop, the vertical plates are welded to improve the overall strength of the three-petal hoop; the box-type structure of the three-petal hoop reduces the weight of the hoop under large load conditions, and can meet the requirements of load-bearing strength and height of the hoop; at the same time, it provides necessary accommodation space for installing locking parts and other components.

[0074] Based on the purpose of adjusting the rotation of the shaft 302 as the petal hoop 2 is screwed together, the rotation of the shaft 302 can also be adjusted to further unscrew the two petal hoop 2; Figures 1 to 5 As shown, a gap is set between the two petal hoops 2; the driving member 304 includes: a first guide sleeve 3041, a second guide sleeve 3042, a fixed shell 3043, an elastic member 3044 and a reversing column 3045; the first guide sleeve 3041 can slide axially along the rotating shaft 302 and is sleeved outside the rotating shaft 302, and the end surface of the first guide sleeve 3041 away from the locking tongue 303 is provided with a first reversing groove 3041a; the first reversing groove 3041a is a groove with a guide surface that is provided along the circumferential direction of the first guide sleeve 3041 and gradually approaches one end of the locking tongue 303; four groups of first reversing grooves 3041a are provided and distributed along the circumferential direction of the first guide sleeve 3041 to realize a closed connection of multiple first reversing grooves 3041a end to end.

[0075] The second guide sleeve 3042 can slide axially along the rotating shaft 302 and is sleeved outside the rotating shaft 302. The second guide sleeve 3042 is located on the side of the first guide sleeve 3041 away from the locking tongue 303 and is arranged at an interval from the first guide sleeve 3041. An end face of the second guide sleeve 3042 close to the first guide sleeve 3041 is provided with a second reversing groove 3042a. The second reversing groove 3042a is a groove with a guiding surface that is circumferentially reversed along the second guide sleeve 3042 and gradually opens towards the end away from the locking tongue 303. The second reversing groove 3042a and the first reversing groove 3041a are staggeredly corresponding.

[0076] A fixed shell 3043 is sleeved and fixedly connected outside the first guide sleeve 3041 and the second guide sleeve 3042. The fixed shell 3043 is connected to the petal hoop 2. An elastic member 3044 is sleeved outside the rotating shaft 302 and is located inside the second guide sleeve 3042 to enable the adjusting fixed shell 3043 to slide circumferentially along the rotating shaft 302. A reversing column 3045 is perpendicularly and fixedly connected to the rotating shaft 302, and has a first state in which the reversing column 3045 is clamped in the first reversing groove 3041a when the fixed shell 3043 approaches the locking tongue 303, and a second state in which the reversing column 3045 is clamped in the second reversing groove 3042a when the fixed shell 3043 moves away from the locking tongue 303.

[0077] By providing the driving member 304, when the reversing column 3045 is in the first state, the locking tongue 303 is locked in the locking hole 3012 or is detachably arranged in the locking hole 3012, and when the reversing column 3045 switches between the first state and the second state, the locking tongue 303 turns. By adjusting the reversing column 3045 to be in the first state or the second state, the locking or opening of the locking member 3 is realized, achieving the effect of convenient use.

[0078] Specifically, there are various setting methods for the gap setting between the two petal hoops 2. For example, the two petal hoops 2 can be set to be less than a quarter of a circle arc. When the two petal hoops 2 are enclosed and locked with the half hoop 1, there is a gap between the two petal hoops 2. And by connecting the petal hoop 2 and the half hoop 1 in a hinged manner, it is convenient to adjust whether there is a gap between the ends that the two petal hoops 2 can contact during the use of the three - petal type hoop, and it is convenient to adjust whether the ends of the two petal hoops 2 are in contact.

[0079] The first guide sleeve 3041 is a circular tubular structure. Four groups of first reversing grooves 3041a are provided on the end face of the first guide sleeve 3041. In this embodiment, the four groups of first reversing grooves 3041a means that there are four first reversing grooves 3041a, and the four first reversing grooves 3041a are sequentially and closed - connected end to end. Such a setting realizes that when the reversing column 3045 switches between two adjacent first reversing grooves 3041a, the reversing column 3045 can drive the rotating shaft 302 to rotate by an angle of 90°, that is, the locking tongue 303 locked in the locking seat 301 can be unlocked, or the locking tongue 303 that is only inserted in the locking seat 301 can be locked in the locking seat 301.

[0080] The second guide sleeve 3042 is a cylindrical structure with one end closed. The closed end is located on the side away from the first guide sleeve 3041. The rotating shaft 302 passes through the second guide sleeve 3042 and can relatively rotate with the second guide sleeve 3042 while relatively sliding along the axial direction of the rotating shaft 302 with respect to the second guide sleeve 3042. By setting the second guide sleeve 3042 as a cylindrical structure with one end closed, one end of the elastic member 3044 abuts against the bottom of the cylinder of the second guide sleeve 3042. Specifically, the elastic member 3044 is selected as a spring. The number of the second commutation grooves 3042a opened in the second guide sleeve 3042 is the same as the number of the first commutation grooves 3041a opened, and the inclination angle of the guiding surface of the first commutation groove 3041a is the same as the inclination angle of the guiding surface of the second commutation groove 3042a; the second commutation groove 3042a and the first commutation groove 3041a are staggered and corresponding, which means that the starting end of the second commutation groove 3042a corresponds to the middle position of the first commutation groove 3041a. The first guide sleeve 3041 and the second guide sleeve 3042 are arranged at intervals, and the interval distance is not less than the end face diameter of the commutation column 3045, thereby ensuring that the commutation column 3045 can be switched between the first state and the second state.

[0081] Thus, it can be realized that the driving member 304 is used to adjust the rotation of the rotating shaft 302 to realize the locking or unlocking of the locking member 3. Specifically, when the two split hoops 2 are locked by the locking member 3, the two split hoops 2 are rotated to rotate towards each other until the locking tongue 303 is inserted into the inner cavity 3011 of the locking seat 301 through the locking hole 3012. At this time, a gap is provided between the ends of the two split hoops 2, and the commutation column 3045 is clamped in the first commutation groove 3041a. The two split hoops 2 are continuously pushed to move towards each other, and the fixed housing 3043 drives the first guide sleeve 3041 and the second guide sleeve 3042 to slide along the axial direction of the rotating shaft 302. During the sliding process, the commutation column 3045 gradually disengages from the first commutation groove 3041a and abuts against the guiding surface of the second commutation groove 3042a. As the two split hoops 2 continue to move towards each other, under the action of the guiding surface of the second commutation groove 3042a, the rotating shaft 302 and the fixed housing 3043 rotate relatively, and the rotating shaft 302 and the locking seat 301 rotate relatively. When the ends of the two split hoops 2 abut, the commutation column 3045 is clamped in the second commutation groove 3042a, and during this process, the elastic member 3044 is gradually compressed.

[0082] When the reversing column 3045 is engaged in the second reversing groove 3042a, the two-petal hoops 2 rotate in the opposite direction, that is, the two-petal hoops 2 gradually change from a resistance state to a gap setting state. In this process, the reversing column 3045 disengages from the second reversing groove 3042a and drives the fixed shell 3043 to move to the side away from the locking tongue 303 during the resetting process of the elastic member 3044, so that the reversing column 3045 gradually abuts against the guide surface of the first reversing groove 3041a, and drives the rotating shaft 302 to rotate under the guiding action of the guide surface of the first reversing groove 3041a. When the reversing column 3045 is fully engaged in the first reversing groove 3041a, the locking tongue 303 rotates at a 90° angle in the process of the two-petal hoops 2 approaching and moving away from each other, thereby achieving full engagement in the inner cavity 3011 of the locking seat 301.

[0083] When adjusting the locking piece 3 to unlock the two-petal hoop 2, the two-petal hoop 2 is adjusted from the spacing state to the conflicting state, and then from the conflicting state to the spacing state. Completing this operation process can enable the rotating shaft 302 to drive the locking tongue 303 to rotate 90°, and then the locking tongue 303 can be separated from the locking seat 301 through the locking hole 3012.

[0084] In order to reduce the resistance of the elastic member 3044 to the rotating shaft 302 when the rotating shaft 302 rotates, Figure 5 As shown, the rotating shaft 302 has a protrusion 3021, and a thrust roller bearing 4 is disposed on the outer sleeve of the rotating shaft 302. One end face of the thrust roller bearing 4 is pressed against the protrusion 3021, and the remaining end face is pressed against the elastic member 3044. By providing the rotating shaft 302 with the protrusion 3021, and arranging the thrust roller bearing 4 between the protrusion 3021 and the elastic member 3044, when the rotating shaft 302 rotates, the elastic member 3044 can press against the protrusion 3021 and the second guide sleeve 3042 to adjust the relative position between the second guide sleeve 3042 and the rotating shaft 302, and compared with the direct contact between the elastic member 3044 and the protrusion 3021, the thrust roller bearing 4 is provided to reduce the resistance encountered by the rotating shaft 302 when rotating.

[0085] Based on the setting that the locking tongue 303 is pressed against the wall of the inner cavity 3011 and rotates in the inner cavity 3011, as shown in FIG. Figure 1 and Figure 5 As shown, the side of the lock tongue 303 away from the rotating shaft 302 is an arcuate surface, for example, a conical surface, and of course other optional methods can be used to reduce the contact area between the lock tongue 303 and the locking seat 301. By setting the side of the lock tongue 303 away from the rotating shaft 302 as an arcuate surface, when the lock tongue 303 abuts against the cavity wall of the inner cavity 3011 and the rotating shaft 302 drives the lock tongue 303 to rotate, the contact area between the lock tongue 303 and the locking seat 301 is reduced, thereby reducing the resistance to the rotation of the rotating shaft 302.

[0086] To facilitate the judgment of whether the locking tongue 303 is in the locked state or the unlocked state within the cavity, as Figures 1 to 5 shown, a indicating piece 5 is fixedly connected to one end of the rotating shaft 302 away from the locking tongue 303; the indicating piece 5 is parallel to the locking tongue 303. The three-piece hoop of the box structure is convenient for forming a cavity for accommodating the indicating piece 5, and is convenient for opening through holes on the partition between its inner and outer circles to observe or adjust the state of the indicating piece 5. And the setting of the indicating piece 5 can also limit the excessive circumferential sliding of the fixed cylinder along the rotating shaft 302, so as to prevent the bottom of the second guide sleeve 3042 from detaching from the rotating shaft 302.

[0087] To further improve the stability after the two-piece hoops 2 are connected, as Figure 1 and Figure 6 shown, the locking member 3 is connected with a limiting member 6 on one or both sides. The limiting member 6 includes: a limiting seat 601 with a limiting groove 6011, a limiting block 602 with a limiting head 6021 that can be inserted and adapted in the limiting groove 6011, a sliding seat 603 for connecting the limiting block 602 to make the limiting block 602 approach or move away from the limiting seat 601, and an adjusting bolt 604 for adjusting the relative position between the limiting block 602 and the sliding seat 603.

[0088] By setting the limiting head 6021 inserted in the limiting groove 6011, and the sliding seat 603 and the adjusting bolt 604 that can adjust the positional relationship between the limiting head 6021 and the limiting seat 601, when the limiting head 6021 is inserted in the limiting groove 6011, it can limit the radial displacement freedom of the two-piece hoops 2, thereby avoiding the misalignment of the two-piece hoops 2. At the same time, when the two-piece hoops 2 are locked by the locking member 3, the two-piece hoops 2 are in a spaced state. At this time, the setting of the limiting member 6 can also prevent the hoop 2 from rotating towards each other under external force interference, so as to prevent the situation that the locking tongue 303 rotates under external force interference caused by external force interference, thereby improving the use stability of the locking member 3.

[0089] Specifically, the limiting seat 601 and the sliding seat 603 are respectively fixedly connected to one piece of the hoop 2, that is, the limiting seat 601 and the sliding seat 603 are respectively connected to the locking seat 301 and the fixed shell 3043 one by one; the adjusting bolt 604 is selected as a lead screw. One end of the adjusting bolt 604 passes through the sliding seat 603 and is threadedly connected to the sliding seat 603 and then rotatably connected to the limiting block 602. That is, when the adjusting bolt 604 is rotated, the adjusting bolt 604 pushes the limiting block 602 to slide along the length direction of the slider.

[0090] To facilitate the two-piece hoops 2 to rotate towards or away from each other, as Figure 1 、 Figure 7 and Figure 8As shown in the figure, self-locking hinge parts 7 are provided at the hinge joints of the two petal hoops 2. The self-locking hinge part 7 includes: a base plate 701 fixedly connected to both ends of the semi-hoop 1, a rotating plate 702 connected to the petal hoop 2 and hinged to the base plate 701 through a hinge core 703, a self-locking speed reducer 704 fixedly connected to the base plate 701 and driving the rotating plate 702 to rotate by the hinge core 703, and a handwheel 705 connected to the input end of the self-locking speed reducer 704. By setting the self-locking speed reducer 704, the relative distance between the two ends of the two petal hoops 2 is adjusted to drive the driving part 304 to switch between the first state and the second state. At the same time, after the state switching is completed, under the action of the self-locking speed reducer 704, the possibility of the petal hoop 2 rotating under external interference can be reduced, and the stability of the three-petal type hoop is improved. When used in conjunction with the locking part 3, the situation that the petal hoop 2 rotates towards or away from each other due to external interference can be reduced, thereby improving the locking stability of the locking part 3.

[0091] In order to reduce the adjustment of the self-locking connection part when the opening and closing distances of the two petal hoops 2 are the same, as Figure 1 , Figure 9 and Figure 10 shown, a load-bearing bar 8 is connected to one end of the petal hoop 2 connected to the semi-hoop 1; a lifting part 9 is arranged between the rotating plate 702 and the load-bearing bar 8. The lifting part 9 includes: a stud 901 with its end buried in the rotating plate 702, and a nut 902 screwed and sleeved outside the stud 901; the nut 902 penetrates through the load-bearing bar 8 rotatably, and the flange 9021 of the nut 902 is embedded and abutted in the load-bearing bar 8. On the basis of setting the self-locking hinge part 7, the lifting part 9 is set. When the rotating plate 702 and the base plate 701 rotate at a certain angle, the opening between the two ends of the two petal hoops 2 that can approach each other is larger. Therefore, when the opening distance of the two petal hoops 2 is certain, the adjustment of the self-locking hinge part 7 can be reduced, which is convenient for the use of the three-petal type hoop. At the same time, when the column body is placed on the semi-hoop 1, the possibility of interference between the two petal hoops 2 and the column body can be reduced.

[0092] Based on the purpose of setting the lifting part 9 to adjust the distance between the petal hoop 2 and the semi-hoop 1, in order to improve the shear resistance of the connection between the petal hoop 2 and the semi-hoop 1, guide parts 10 are arranged on both sides of the lifting part 9 along the length direction of the load-bearing bar 8. The guide part 10 includes: a guide post 1001 fixedly connected to one end of the rotating plate 702 and a guide tube 1002 embedded and penetrating through the load-bearing bar 8, and the guide post 1001 is slidably inserted into the guide tube 1002. By setting the guide post 1001 and the guide tube 1002, while using the lifting part 9 to adjust the distance between the two petal hoops 2 and the semi-hoop 1, the guiding stability of the nut 902 and the stud 901 is improved, and at the same time, the shear resistance of the connection between the load-bearing bar 8 and the rotating plate 702 is improved.

[0093] When the three - petal type hoop described in the embodiments of the present application is in use, rotate the screw sleeve 902 to make the screw sleeve 902 rotate relative to the screw stud 901, thereby making the bearing strip 8 move away from the rotating plate 702, that is, adjust the lifting member 9 to make the petal hoop 2 in the raised state; then rotate the handwheel 705, which drives the base plate 701 to rotate relative to the rotating plate 702 under the action of the self - locking speed reducer 704 and the hinge core 703, so that the two petal hoops 2 rotate away from each other. After placing the cylinder on the half - hoop 1, rotate the handwheel 705 in the reverse direction to make the two petal hoops 2 approach each other. During the approaching process, the locking tongue 303 is inserted into the inner cavity 3011 of the locking seat 301, and as the two petal hoops 2 continue to move towards each other, the ends of the two petal hoops 2 come into contact with each other. At this time, the locking tongue 303 rotates in the inner cavity 3011, and then rotate the handwheel 705 in the reverse direction to make the two petal hoops 2 rotate away from each other until the handwheel 705 cannot be rotated. At this time, the locking member 3 is in the locked state. Then rotate the adjusting bolt 604, and under the action of the adjusting bolt 604, the limiting head 6021 is inserted into the limiting groove 6011 to fix the size of the gap between the two petal hoops 2. Then rotate the two screw sleeves 902 synchronously to make the petal hoop 2 move towards the side close to the half - hoop 1, thereby completing the locking of the three - petal type hoop. When unlocking, adjust the lifting member 9, the limiting member 6, and the rotating member in sequence to achieve the unlocking of the three - petal type hoop.

[0094] By providing the petal hoops 2 hinged at both ends of the half - hoop 1, it is convenient to rotate the petal hoops 2 when sleeving the hoop outside the cylinder, and by providing the driving member 304, the locking tongue 303 is rotated to be locked in the locking seat 301 as the petal hoops 2 are screwed together, thus achieving the effect of facilitating the opening and locking of the hoop and improving the convenience of using the three - petal type hoop.

[0095] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A three-piece hoop, characterized in that, Comprising: A semi-hoop (1); And two split hoops (2) respectively hinged to both ends of the semi-hoop (1); the semi-hoop (1) and the two split hoops (2) enclose to fit over a cylinder; A locking member (3) is arranged between the ends of the two split hoops (2) that can abut against each other; the locking member (3) comprises: A locking seat (301) having an inner cavity (3011) and a locking hole (3012) communicating with the inner cavity (3011) opened on one side thereof, a locking tongue (303) connected with a rotating shaft (302) and capable of being inserted into the inner cavity (3011) through the locking hole (3012) and then clamped in the inner cavity (3011) by rotating with the rotating shaft (302), and a driving member (304) sleeved outside the rotating shaft (302) and adjusting the rotation of the rotating shaft (302) as the two split hoops (2) are screwed together; The locking seat (301) and the driving member (304) are respectively connected with the two split hoops (2).

2. The three-piece hoop according to claim 1, wherein The two split hoops (2) are arranged with a gap therebetween; the driving member (304) comprises: A first guide sleeve (3041), capable of sliding axially along the rotating shaft (302) and rotatably sleeved outside the rotating shaft (302), a first reversing groove (3041a) is opened on the end face of the first guide sleeve (3041) facing away from the locking tongue (303); the first reversing groove (3041a) is a groove with a guiding surface opened along the positive circumferential direction of the first guide sleeve (3041) and gradually towards the end close to the locking tongue (303); four groups of the first reversing grooves (3041a) are opened and distributed along the circumferential direction of the first guide sleeve (3041) to realize the head-to-tail closed connection of the plurality of first reversing grooves (3041a); A second guide sleeve (3042), capable of sliding axially along the rotating shaft (302) and rotatably sleeved outside the rotating shaft (302), the second guide sleeve (3042) is located on the side of the first guide sleeve (3041) facing away from the locking tongue (303) and is arranged at an interval from the first guide sleeve (3041); a second reversing groove (3042a) is opened on the end face of the second guide sleeve (3042) close to the first guide sleeve (3041); the second reversing groove (3042a) is a groove with a guiding surface opened along the reverse circumferential direction of the second guide sleeve (3042) and gradually towards the end away from the locking tongue (303); the second reversing groove (3042a) and the first reversing groove (3041a) are staggered and corresponding; A fixed shell (3043), sleeved and fixedly connected outside the first guide sleeve (3041) and the second guide sleeve (3042), the fixed shell (3043) is connected with the split hoop (2); An elastic member (3044), sleeved outside the rotating shaft (302) and located inside the second guide sleeve (3042) to enable the fixed shell (3043) to slide circumferentially along the rotating shaft (302); The reversing column (3045) is perpendicularly and fixedly connected to the rotating shaft (302); and has a first state in which the reversing column (3045) is clamped in the first reversing groove (3041a) when the fixed housing (3043) approaches the locking tongue (303); and has a second state in which the reversing column (3045) is clamped in the second reversing groove (3042a) when the fixed housing (3043) moves away from the locking tongue (303).

3. The three-piece hoop according to claim 2, wherein: The elastic member (3044) is a spring.

4. The three-piece hoop according to claim 2, wherein: The rotating shaft (302) has a convex portion (3021), a thrust roller bearing (4) is sleeved outside the rotating shaft (302), one end face of the thrust roller bearing (4) abuts against the convex portion (3021), and the remaining end face abuts against the elastic member (3044).

5. The three-piece hoop according to claim 2, wherein: The side surface of the locking tongue (303) facing away from the rotating shaft (302) is an arc surface.

6. The three-piece hoop according to claim 1, wherein: One end of the rotating shaft (302) facing away from the locking tongue (303) is fixedly connected with an indicating piece (5); the indicating piece (5) is parallel to the locking tongue (303).

7. The three-piece hoop according to claim 1, wherein: The locking member (3) is connected with a limiting member (6) on one side or both sides, and the limiting member (6) includes: A limiting seat (601) provided with a limiting groove (6011), a limiting block (602) having a limiting head (6021) that can be inserted and adapted in the limiting groove (6011), a sliding seat (603) connecting the limiting block (602) to make the limiting block (602) approach or move away from the limiting seat (601), and an adjusting bolt (604) for adjusting the relative position of the limiting block (602) and the sliding seat (603).

8. The three-piece hoop according to claim 1, wherein: Self-locking hinge members (7) are provided at the joints where the hoop (2) is hinged to the two hoops (2), and the self-locking hinge members (7) include: A substrate (701) fixedly connected to both ends of the half hoop (1), a rotating plate (702) connected to the hoop (2) and hinged to the substrate (701) through a hinge core (703), a self-locking reducer (704) fixedly connected to the substrate (701) to drive the rotating plate (702) to rotate by the hinge core (703), and a hand wheel (705) connected to the input end of the self-locking reducer (704).

9. The three-piece hoop according to claim 8, wherein: A bearing strip (8) is connected to one end of the hoop (2) connected to the half hoop (1); a lifting member (9) is provided between the rotating plate (702) and the bearing strip (8), and the lifting member (9) includes: A stud (901) with its end embedded in the rotating plate (702), and a nut sleeve (902) screwed and sleeved outside the stud (901); the nut sleeve (902) rotatably penetrates through the bearing strip (8), and the flange (9021) of the nut sleeve (902) is embedded and abutted tightly in the bearing strip (8).

10. The three-piece hoop according to claim 9, wherein: Guide members (10) are arranged on both sides of the lifting member (9) along the length direction of the bearing strip (8), and the guide members (10) include: a guide post (1001) with one end fixedly connected to the rotating plate (702) and a guide tube (1002) embedded and penetrating through the bearing strip (8), and the guide post (1001) is slidably inserted into the guide tube (1002).

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