Fast supporting leg pipe and bundle type folding bed with same

Abstract

A fast supporting leg pipe comprises a leg pipe body and supporting legs connected to the two ends of the leg pipe body, and connectors are installed at the tops of the supporting legs. The foot tube body comprises a first foot tube and a second foot tube which can slide relatively, a wrench used for controlling the relative sliding position of the first foot tube and the second foot tube is hinged to the first foot tube, and a linkage rod hinged to the second foot tube is hinged to the middle of the wrench. The foot tube main body realizes self-locking through a wrench or a locking structure for locking the sliding positions of the first foot tube and the second foot tube is formed on the wrench; compared with the prior art, by arranging the spanner and the linkage rod which are hinged to each other, in the spanner rotating process, the angle between the spanner and the linkage rod is changed, so that relative movement of the spanner and the end of the linkage rod is achieved, telescopic adjustment of the first foot pipe and the second foot pipe is achieved, rapid installation of the rapid supporting foot pipe is completed, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of bundled folding beds, in particular to a quick-supporting leg tube and a bundled folding bed with the quick-supporting leg tube. Background Art

[0002] As outdoor leisure activities become more and more popular, most people choose to go out for fun, enjoy the natural beauty, release stress and relax. However, due to the relatively humid conditions in the wild and the presence of many small creatures such as reptiles, people lying directly in the wild will have a great impact on the human body. Folding beds not only meet the needs of outdoor leisure, but also meet the needs of easy carrying.

[0003] A folding bed is a simple bed designed using the principle of joints. It can be folded and stored in various ways for the sake of convenience and space saving. The folding bed is convenient, practical and easy to store.

[0004] Among them, the bundle-type folding bed has the characteristic of being easy to carry after being folded. The bundle-type folding bed is usually composed of a bed surface and a plurality of leg tubes. The bed surface is supported by the plurality of leg tubes, thereby realizing the overhead support of the bed surface. However, the existing bundle-type folding chairs need to be opened and installed with great force to be assembled.

[0005] Chinese patent number CN208030770U discloses a telescopic bed foot and a baby bed, wherein the telescopic bed foot comprises an outer foot tube, an inner foot tube, a bed foot locking mechanism, a bed foot unlocking mechanism and a top extension mechanism. The rear end of the inner foot tube is arranged inside the outer foot tube, and the front end thereof is arranged outside the outer foot tube; the bed foot locking mechanism is arranged inside the inner foot tube, and is used to lock the outer foot tube and the inner foot tube to limit the inner foot tube from moving forward and backward inside the outer foot tube; the bed foot unlocking mechanism is arranged inside the inner foot tube, and is used to unlock the bed foot locking mechanism and drive the inner foot tube to move backward inside the outer foot tube; the top extension mechanism is arranged inside the outer foot tube, and is used to push the inner foot tube forward, and when the top extension mechanism pushes the inner foot tube forward to the locking position, the bed foot locking mechanism automatically locks the outer foot tube and the inner foot tube.

[0006] The above-mentioned bed legs control the connection position of the outer leg tube and the inner leg tube through the bed leg locking mechanism, the bed leg unlocking mechanism and the top extension mechanism, so as to adjust the telescopic state of the outer leg tube and the inner leg tube. However, due to the addition of the bed leg locking mechanism, the bed leg unlocking mechanism and the top extension mechanism, the overall weight is greatly increased, and it is time-consuming and laborious to carry the above-mentioned bed legs. Utility Model Content

[0007] The utility model aims to overcome the defects in the prior art and provides a quick-installation, easy-to-use, labor-saving and fast-acting fast-supporting leg tube and a bundled folding bed with the quick-supporting leg tube.

[0008] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a quick-support leg tube, including a leg tube main body and supporting feet connected to both ends of the leg tube main body, and a connecting head is installed on the top of the supporting feet; the leg tube main body includes a first leg tube and a second leg tube that can slide relatively, and a wrench for controlling the relative sliding position of the first leg tube and the second leg tube is hinged on the first leg tube, and a linkage rod hinged to the second leg tube is hinged in the middle of the wrench; the leg tube main body is self-locking by the wrench or a locking structure for locking the sliding position of the first leg tube and the second leg tube is formed on the wrench.

[0009] The first leg tube and the second leg tube can slide along the length direction, so as to adjust the distance between the supporting feet at both ends of the leg tube body. The sliding of the first leg tube and the second leg tube is controlled under the action of the wrench, so as to control the distance between the supporting feet at both ends of the leg tube body. When the distance between the supporting feet at both ends of the leg tube body is at the maximum state, the leg tube body is in the open state, and the positioning pin is inserted into the positioning socket to realize the positioning of the leg tube body in the open state.

[0010] As a preferred solution of the utility model, the connection between the wrench and the first leg tube forms a first hinge point, the connection between the linkage rod and the second leg tube forms a second hinge point, and the connection between the linkage rod and the wrench forms a third hinge point. The line connecting the first hinge point and the second hinge point is positioned as line A, and the relative position of the third hinge point and line A is controlled to adjust the self-locking state of the leg tube body.

[0011] As a preferred solution of the utility model, a connecting protrusion for moving the first hinge point upward is formed on the wrench, and the linkage rod is hinged to the connecting protrusion.

[0012] As a preferred solution of the utility model, a connecting piece for moving the second hinge point downward is formed at the bottom of the second leg tube, and the linkage rod is hinged to the connecting piece.

[0013] As a preferred solution of the utility model, the locking structure is a positioning pin formed in the middle of the wrench, and a positioning socket matched with the positioning pin is formed on the first leg tube.

[0014] As a preferred solution of the utility model, an inner lining tube is formed at the end of the first leg tube along the length direction of the first leg tube, and a sliding groove adapted to the inner lining tube is formed on the second leg tube.

[0015] As a preferred solution of the utility model, the wrench includes a hinged section and a pull section connected to each other, the end of the hinged section is hinged to the first leg tube, and the linkage rod is hinged at the connection between the hinged section and the pull section.

[0016] As a preferred solution of the utility model, the pulling section is arranged along the length direction of the hinge section, and the length of the pulling section is greater than the length of the hinge section.

[0017] As a preferred solution of the utility model, the positioning latch is formed in the hinge section.

[0018] As a preferred solution of the utility model, the middle parts of the hinge section and the pull section form an inner concave structure which is convenient for clamping with the outer wall of the first leg tube or the second leg tube.

[0019] As a preferred solution of the utility model, both ends of the leg tube body are respectively provided with connecting joints connected to the supporting legs.

[0020] A bundled folding bed comprises a quick-supporting leg tube and a bed frame supporting tube connected to both ends of the quick-supporting leg tube.

[0021] As a preferred solution of the utility model, the bed frame support tube is detachably connected to the connecting head, a supporting soft surface is connected between the bed frame support tubes at both ends of the quick-support leg tubes, the bottoms of the first leg tube and the second leg tube are in contact with the ground, and the leg tube body is extended laterally.

[0022] Compared with the prior art, the beneficial effect of the utility model is as follows: the present application realizes the change of the angle between the wrench and the linkage rod by setting a hinged wrench and a linkage rod, thereby realizing the relative movement of the ends of the wrench and the linkage rod, realizing the telescopic adjustment of the first leg tube and the second leg tube, thereby completing the rapid installation of the quick-support leg tube, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0025] Figure 3 is a schematic diagram of the structure of the second leg tube in the first embodiment;

[0026] Figure 4 is a schematic structural diagram of the first leg tube in Embodiment 1;

[0027] Figure 5 is a schematic structural diagram of the first leg tube in the second embodiment;

[0028] Figure 6 is a schematic diagram of the structure of the second leg tube in the second embodiment;

[0029] Figure 7 It is a schematic diagram of the connection between the leg tube body and the supporting foot;

[0030] Figure 8 It is a schematic diagram of the structure of the quick-support leg tube of the third embodiment;

[0031] Fig. 9 yes Figure 8 A partial enlarged view of point B in the middle;

[0032] Fig.10 is a schematic diagram of the locked state of the third embodiment;

[0033] Fig.11 It is a schematic diagram of the structure of the quick-support leg tube of the fourth embodiment;

[0034] Fig.12 yes Fig.11 A partial enlarged view of point C in the middle;

[0035] Fig.13 is a schematic diagram of a locked state of Embodiment 4;

[0036] Fig.14 This is a structural diagram of a bundle-type folding bed

[0037] Figure numerals: bed frame support tube 1, quick-support leg tube 2, leg tube body 3, first leg tube 31, second leg tube 32, lining tube 33, sliding groove 34, positioning socket 35, connecting piece 36, support leg 4, clamp 5, wrench 6, hinge section 61, pull section 62, positioning pin 63, connecting protrusion 64, linkage rod 7, connecting joint 9. DETAILED DESCRIPTION

[0038] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0039] like Figure 1-Figure 14 As shown, a quick-support leg tube comprises a leg tube body 3 and supporting legs 4 connected to both ends of the leg tube body 3, and a clamp 5 is installed on the top of the supporting leg 4; the leg tube body 3 comprises a first leg tube 31 and a second leg tube 32 which are slidably connected, and the first leg tube 31 and the second leg tube 32 are located on the same straight line; a wrench 6 is hinged on the first leg tube 31, and a linkage rod 7 hinged to the second leg tube 32 is hinged in the middle of the wrench 6.

[0040] The first leg tube 31 and the second leg tube 32 can slide relative to each other, and the wrench 6 can control the relative sliding position of the first leg tube 31 and the second leg tube 32 . A locking structure for locking the sliding position of the first leg tube 31 and the second leg tube 32 is formed on the wrench 6 .

[0041] The first leg tube 31 and the second leg tube 32 can slide along the length direction. The first leg tube 31 and the second leg tube 32 are pipe structures with the same diameter. The first leg tube 31 and the second leg tube 32 synchronously drive the support legs 4 to move synchronously during the movement, thereby adjusting the distance between the support legs 4 at both ends of the leg tube body 3.

[0042] The end of the wrench 6 is hinged on the first leg tube 31, and the end of the linkage rod 7 is hinged on the second leg tube 32. Since the linkage rod 7 and the wrench 6 are hinged, during the rotation of the wrench 6, the angle formed between the linkage rod 7 and the wrench 6 is changed, thereby changing the distance between the hinge point of the wrench 6 on the first leg tube 31 and the hinge point of the linkage rod 7 on the second leg tube 32, so that by rotating the wrench 6, the first leg tube 31 and the second leg tube 32 can slide along the length direction.

[0043] The locking structure is a positioning pin 63 formed in the middle of the wrench 6, and a positioning socket 35 matched with the positioning pin 63 is formed on the first leg tube 31. The sliding of the first leg tube 31 and the second leg tube 32 is controlled under the action of the wrench 6, so as to control the distance between the supporting feet 4 at both ends of the leg tube body 3. When the distance between the supporting feet 4 at both ends of the leg tube body 3 is in the maximum state, the leg tube body 3 is in the open state. Since the positioning pin 63 rotates synchronously with the rotation of the wrench 6, the positioning pin 63 rotates to a certain position and is inserted into the positioning socket 35. At this time, the positioning pin 63 is arranged along the radial direction of the leg tube body 3 to realize the positioning of the leg tube body 3 in the open state.

[0044] Embodiment 1: An inner lining tube 33 is formed at the end of the first leg tube 31 along the length direction of the first leg tube 31, and a sliding groove 34 matched with the inner lining tube 33 is formed on the second leg tube 32. The diameter of the inner lining tube 33 is smaller than the diameter of the first leg tube 31, and the inner lining tube 33 is always inserted in the sliding groove 34. The locking structure is a positioning pin 63 formed in the middle of the wrench 6, and a positioning hole 35 matched with the positioning pin 63 is formed on the first leg tube 31.

[0045] When the leg tube body 3 is in the maximum extension state, the lining tube 33 is also located in the sliding groove 34, thereby ensuring that the first leg tube 31 and the second leg tube 32 are always in a connected state, and the strength of the leg tube body 3 is supported under the action of the lining tube 33. The size of the sliding groove 34 is over-matched with the lining tube 33 to ensure the stability of the lining tube 33 during the sliding process. The sliding between the first leg tube 31 and the second leg tube 32 is the sliding of the lining tube 33 in the sliding groove 34.

[0046] Embodiment 2: An inner lining tube 33 is formed at the end of the second leg tube 32 along the length direction of the second leg tube 32, and a sliding groove 34 matched with the inner lining tube 33 is formed on the first leg tube 31. The diameter of the inner lining tube 33 is smaller than the diameter of the second leg tube 32, and the inner lining tube 33 is always inserted in the sliding groove 34. The locking structure is a positioning pin 63 formed in the middle of the wrench 6, and a positioning hole 35 matched with the positioning pin 63 is formed on the first leg tube 31.

[0047] When the leg tube body 3 is in the maximum extension state, the lining tube 33 is also located in the sliding groove 34, thereby ensuring that the first leg tube 31 and the second leg tube 32 are always in a connected state, and the strength of the leg tube body 3 is supported under the action of the lining tube 33. The size of the sliding groove 34 is over-matched with the lining tube 33 to ensure the stability of the lining tube 33 during the sliding process. The sliding between the first leg tube 31 and the second leg tube 32 is the sliding of the lining tube 33 in the sliding groove 34.

[0048] The connection between the wrench (6) and the first leg tube (31) forms a first hinge point, the connection between the linkage rod (7) and the second leg tube (32) forms a second hinge point, and the connection between the linkage rod (7) and the wrench (6) forms a third hinge point. The line connecting the first hinge point and the second hinge point is positioned as a line A, and the relative position of the third hinge point and the line A is controlled to adjust the self-locking state of the leg tube body (3).

[0049] When the quick support leg tube 2 is in the unlocked state, the third hinge point of the wrench 6 and the linkage rod 7 is located on one side of the connection line A. When the quick support leg tube 2 is in the locked state, the third hinge point of the wrench 6 and the linkage rod 7 is close to the connection line A or located on the other side of the connection line A. (Close to, reaching or passing the dead point)

[0050] Embodiment 3: Based on embodiment 1 or embodiment 2, a connecting protrusion 64 for moving the first hinge point upward is formed on the wrench 6, and the linkage rod 7 is hinged to the connecting protrusion 64. The connecting protrusion 64 is located in the middle of the wrench 6. The middle should not be just the absolute middle position, but also include a partial position close to the middle of the wrench 6.

[0051] By setting a connecting protrusion 64 located in the middle of the wrench 6, the connecting protrusion 64 is hinged to the linkage rod 7, so that the linkage rod 7 moves up at the first hinge point position on the wrench 6. When the locking structure is in a locked state, it is beneficial for the locking structure to reach the dead point position, pass the dead point, or approach the dead point, thereby facilitating the realization of the locking function.

[0052] Embodiment 4: Based on embodiment 1 or embodiment 2, a connecting piece 36 for moving the second hinge point downward is formed at the bottom of the second leg tube 32 , and the linkage rod 7 is hinged to the connecting piece 36 .

[0053] By setting a connecting piece 36 at the bottom of the second leg tube 32, the connecting piece 36 is hinged to the linkage rod 7, so that the second hinge point position of the linkage rod 7 on the second leg tube 32 moves downward. When the locking structure is in a locked state, it is beneficial for the locking structure to reach the dead point position, pass the dead point, or approach the dead point, thereby facilitating the realization of the locking function.

[0054] Embodiment 5: Compared with Embodiment 1 and Embodiment 2, the locking structure may be a matching locking device of a spring pin and a spring pin hole. At least one of the first leg tube 31 and the second leg tube 32 is provided with a spring pin, and the other is provided with a spring pin hole corresponding to the spring pin. When the first leg tube 31 and the second leg tube 32 slide to a certain position, the spring pin is reset and inserted into the corresponding spring pin hole under the action of its own elastic force, thereby realizing position locking between the first leg tube 31 and the second leg tube 32.

[0055] Embodiment 6: Compared with Embodiment 1 and Embodiment 2, the locking structure may be a latch locking device, and corresponding latch holes are formed on the first leg tube 31 and the second leg tube 32. When the first leg tube 31 and the second leg tube 32 slide to a certain position, a latch that is simultaneously connected to the first leg tube 31 and the second leg tube 32 is inserted to achieve position locking between the first leg tube 31 and the second leg tube 32.

[0056] The locking structure may also be a locking structure such as a cam pressing, a latching tooth locking, etc.

[0057] The wrench 6 includes a hinged section 61 and a pull section 62 connected to each other. The end of the hinged section 61 is hinged to the first leg tube 31. The linkage rod 7 is hinged at the connection between the hinged section 61 and the pull section 62. The pull section 62 is arranged along the length direction of the hinged section 61, and the length of the pull section 62 is greater than the length of the hinged section 61.

[0058] The pulling section 62 is convenient for the operator to hold tightly and drive the pulling section 62 to rotate. During the rotation of the pulling section 62, the hinged section 61 is simultaneously driven to rotate. Since the length of the pulling section 62 is greater than the length of the hinged section 61, the pulling section 62 forms a labor-saving lever structure, which is convenient for the operator's manual operation.

[0059] The positioning pin 63 is formed in the hinge section 61 , and the positioning pin 63 rotates synchronously with the rotation of the hinge section 61 . When the hinge section 61 rotates close to the leg tube body 3 , the positioning pin 63 is synchronously driven to move close to the leg tube body 3 .

[0060] An inner concave structure is formed in the middle of the hinged section 61 and the pulling section 62 for easy engagement with the outer wall of the first leg tube 31 or the second leg tube 32. When the first leg tube 31 and the second leg tube 32 are in their longest state, the hinged section 61 and the pulling section 62 abut against the outer walls of the first leg tube 31 and the second leg tube 32. Under the action of the inner concave structure in the middle of the hinged section 61 and the pulling section 62, the middle of the hinged section 61 and the pulling section 62 can be engaged with the first leg tube 31 and the second leg tube 32, thereby increasing the contact area between the hinged section 61 and the pulling section 62 and the first leg tube 31 and the second leg tube 32, thereby improving the stability of the hinged section 61 and the pulling section 62 on the first leg tube 31 and the second leg tube 32.

[0061] Both ends of the leg tube body 3 are respectively provided with connecting joints 9 connected to the supporting leg 4. The connecting joint 9 is a three-way structure. The connecting joint 9 is provided with screws fixedly connected to the leg tube body 3 and the supporting leg 4, so that the connecting joint 9, the leg tube body 3 and the supporting leg 4 are an integrated structure. When the leg tube body 3 is extended or retracted, the supporting leg 4 and the connecting joint 9 are synchronously driven to move.

[0062] A bundled folding bed comprises a quick-supporting leg tube 2 and a bed frame support tube 1 connected to both ends of the quick-supporting leg tube 2. A plurality of quick-supporting leg tubes 2 can be arranged at the bottom of the bed frame support tube 1, thereby realizing a stable overhead arrangement of the two bed frame support tubes 1. A bed surface can be laid on the two bed frame support tubes 1, thereby forming a bed structure.

[0063] The bed frame support tube 1 is detachably connected to the connector 5, a supporting soft surface is connected between the bed frame support tubes 1 at both ends of the quick-support leg tubes, the bottoms of the first leg tube 31 and the second leg tube 32 are in contact with the ground, and the leg tube body 3 is extended laterally.

[0064] During installation, the clamp head 5 is inserted into the bed frame support tube 1, and the wrench 6 is pressed down. The wrench 6 of the lever structure presses the first leg tube 31 and the second leg tube 32 apart, so that the first leg tube 31 and the second leg tube 32 move outward relative to each other, thereby increasing the relative distance between the first leg tube 31 and the second leg tube 32, tightening the bed surface, and completing the installation.

[0065] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0066] Although the present invention uses the following terms more often: bed frame support tube 1, quick support leg tube 2, leg tube body 3, first leg tube 31, second leg tube 32, lining tube 33, sliding groove 34, positioning socket 35, connector 36, support leg 4, clamp 5, wrench 6, hinge section 61, pull section 62, positioning latch 63, connecting protrusion 64, linkage rod 7, connecting joint 9, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A quick-support leg tube, comprising a leg tube body (3) and legs (4) connected to both ends of the leg tube body (3), wherein a connector (5) is installed on the top of the legs (4); the characteristics are as follows: The leg tube body (3) comprises a first leg tube (31) and a second leg tube (32) which are relatively slidable, a wrench (6) for controlling the relative sliding position of the first leg tube (31) and the second leg tube (32) being hingedly connected to the first leg tube (31), and a linkage rod (7) hingedly connected to the second leg tube (32) being hingedly connected to the middle of the wrench (6); the leg tube body (3) is self-locking by means of the wrench (6), or a locking structure for locking the sliding position of the first leg tube (31) and the second leg tube (32) is formed on the wrench (6).

2. A quick-support leg tube according to claim 1, characterized in that: The connection between the wrench (6) and the first leg tube (31) forms a first hinge point, the connection between the linkage rod (7) and the second leg tube (32) forms a second hinge point, and the connection between the linkage rod (7) and the wrench (6) forms a third hinge point. The line connecting the first hinge point and the second hinge point is positioned as a line A, and the relative position of the third hinge point and the line A is controlled to adjust the self-locking state of the leg tube body (3).

3. A quick-support leg tube according to claim 2, characterized in that: The wrench (6) is formed with a connecting protrusion (64) for moving the first hinge point upward, and the linkage rod (7) is hinged to the connecting protrusion (64).

4. A quick-support leg tube according to claim 2 or 3, characterized in that: A connecting piece (36) for moving the second hinge point downward is formed at the bottom of the second leg tube (32), and the linkage rod (7) is hingedly connected to the connecting piece (36).

5. The quick-support leg tube according to claim 1, characterized in that: The locking structure is a positioning pin (63) formed in the middle of the wrench (6), and a positioning socket (35) matched with the positioning pin (63) is formed on the first leg tube (31).

6. The quick-support leg tube according to claim 1, characterized in that: An inner lining tube (33) is formed at the end of the first leg tube (31) and is arranged along the length direction of the first leg tube (31), and a sliding groove (34) is formed on the second leg tube (32) and is matched with the inner lining tube (33).

7. The quick-support leg tube according to claim 1, characterized in that: The wrench (6) comprises a hinged section (61) and a pull section (62) connected to each other, the end of the hinged section (61) is hinged to the first leg tube (31), and the linkage rod (7) is hinged to the connection between the hinged section (61) and the pull section (62).

8. The quick-support leg tube according to claim 7, characterized in that: The pull section (62) is arranged along the length direction of the hinge section (61), and the length of the pull section (62) is greater than the length of the hinge section (61).

9. The quick-support leg tube according to claim 5, characterized in that: The positioning pin (63) is formed in the hinge section (61).

10. The quick-support leg tube according to claim 7, characterized in that: The middle parts of the hinge section (61) and the pull section (62) form an inner concave structure that is convenient for clamping with the outer wall of the first leg tube (31) or the second leg tube (32).

11. The quick-support leg tube according to claim 1, characterized in that: Both ends of the leg tube body (3) are respectively provided with connection joints (9) connected to the supporting legs (4).

12. A bundle-type folding bed, characterized in that: It comprises a quick-support leg tube as claimed in any one of claims 1 to 11 and a bed frame support tube (1) connected to both ends of the quick-support leg tube.

13. The bundle-type folding bed according to claim 12, characterized in that: The bed frame support tube (1) is detachably connected to the connector (5); a soft support surface is connected between the bed frame support tube (1) at both ends of the quick-support leg tube; the bottom of the support leg (4) contacts the ground; and the leg tube body (3) is arranged to extend horizontally.

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