Seat tube clamp and bicycle

Abstract

The utility model relates to the technical field of bicycles, and provides a seat tube clamp and a bicycle. The seat tube clamp comprises a connecting piece, a C-shaped clamping sleeve and a U-shaped handle, a first clamping seat is arranged at the first end of the clamping sleeve, a second clamping seat is arranged at the second end of the clamping sleeve, the connecting piece is arranged on the first side of the clamping sleeve, the first end of the connecting piece sequentially penetrates through the second clamping seat and the first clamping seat, and the second end of the connecting piece sequentially penetrates through the second clamping seat and the second clamping seat. The second side of the clamping sleeve is provided with a connecting piece, the second end of the connecting piece is hinged to the first end of the handle, a copper gasket is arranged between the first end of the handle and the second clamping base, the second side of the clamping sleeve is provided with a lifting lug, and the second end of the handle is hinged to the lifting lug. By arranging the copper gasket, when the handle rotates, friction between the first end of the handle and the second clamping base is effectively prevented, the copper gasket has certain flexibility and abrasion resistance, the abrasion resistance and the locking strength of the seat tube clamp are improved, safety is improved, and meanwhile operation is convenient and reliability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bicycle technical field especially a seat tube clamp and bicycle. BACKGROUND

[0002] Bicycle, also called as bicycle, is usually two-wheel structure. After the person rides the car, the power is taken with the foot pedal, drives the vehicle operation through the transmission between the chain and the gear, is the green environmental protection traffic tool.

[0003] The seat tube and the frame pipe of bicycle are connected with the seat tube clamp, so the seat tube clamp is the key part of the whole bicycle seat tube connection, the existing seat tube clamp is usually a clamp body, the screw rod is inserted in one end of the clamp body, the clamp body is locked through the nut ring of one end, reaches the purpose of pre-fixing, then rotates the handle of the other end of the screw rod, extrudes the clamp body from the connecting place, thereby reaches the purpose of fastening, after this kind of fixing, the handle is subjected to the reaction force, and it is very difficult to rotate and open, is inconvenient to disassemble, and frequent adjustment can cause the abrasion of the parts of seat tube clamp, thereby causing loosening, and affecting the safety of riding. SUMMARY

[0004] The utility model provides a seat tube clamp and bicycle to solve the defect that the abrasion of the parts of seat tube clamp is caused due to frequent adjustment of seat height in prior art, the locking effect is affected, the wear resistance between the handle and the sleeve of seat tube clamp is improved, the locking strength is guaranteed, and the safety is improved.

[0005] The utility model provides a seat tube clamp, including connecting piece, the sleeve of C type and the handle of U type, first end of sleeve is equipped with first holder, second end of sleeve is equipped with second holder, connecting piece is located first side of sleeve, first end of connecting piece is in proper order and passes second holder and first holder, second end of connecting piece is linked with first end of handle, first end of handle and second holder between be equipped with copper gasket, second side of sleeve is equipped with lug, second end of handle is linked with lug.

[0006] According to the seat tube clamp provided by the utility model, the connecting piece includes a threaded hole matched with the screw column, the adjusting cap is arranged on the side of the first holder away from the second holder, the first end of the screw column is in proper order and passes the second holder and the first holder, and the second end of the screw column is provided with a connecting ring, and the first end of the handle is hinged with the connecting ring through a first pin shaft.

[0007] According to the seat tube clamp provided by the utility model, the connecting piece further includes a limiting nut, and the limiting nut is screwed and fixed to the first end of the screw column, so as to be limitedly matched with the adjusting cap.

[0008] According to the seat tube clamp provided by the utility model, the one end of the adjusting cap away from the first clamping base is provided with a counterbore, and the counterbore is used for accommodating the limiting nut.

[0009] According to the seat tube clamp provided by the utility model, the first clamping base is provided with a first perforation, the one end of the adjusting cap close to the first clamping base is provided with a guide sliding sleeve, the stud is arranged in the guide sliding sleeve, and the guide sliding sleeve is arranged in the first perforation.

[0010] According to the seat tube clamp provided by the utility model, the second clamping base is provided with a second perforation, the second perforation, the first perforation and the stud are coaxial.

[0011] According to the seat tube clamp provided by the utility model, the first end of the handle is provided with a first hinged part matched with the second end of the connecting piece, the side of the second clamping base close to the first hinged part is provided with an arc-shaped groove matched with the first hinged part, and the copper gasket is attached to the arc-shaped groove.

[0012] According to the seat tube clamp provided by the utility model, the back side of the handle is provided with a reinforcing rib.

[0013] According to the seat tube clamp provided by the utility model, the side of the first clamping base towards the second clamping base is provided with a first inclined surface, the side of the second clamping base towards the first clamping base is provided with a second inclined surface, and the first inclined surface is parallel to the second inclined surface.

[0014] The utility model also provides a bicycle comprising the seat tube clamp.

[0015] The utility model provides a seat tube clamp and bicycle, including setting connecting piece, C type's clamping sleeve and U type's handle, the first end of clamping sleeve is equipped with first clamping base, the second end of clamping sleeve is equipped with second clamping base, the first side of clamping sleeve is equipped with connecting piece, the first end of connecting piece is sequentially threaded through second clamping base and first clamping base, the second end of connecting piece is hinged with the first end of handle, and copper gasket is arranged between the first end of handle and second clamping base, the second side of clamping sleeve is equipped with lug, and the second end of handle is hinged with lug, through setting copper gasket, when handle rotates, the first end of handle is effectively prevented from rubbing with second clamping base, copper gasket has certain flexibility and wear resistance, the wear resistance and locking strength of seat tube clamp are improved, and safety is improved further, simultaneously, convenient operation has high reliability. BRIEF DESCRIPTION OF DRAWINGS

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is an exploded structural diagram of the seat tube clamp provided by this utility model.

[0018] Figure 2 This is a schematic diagram of the seat tube clamp provided by this utility model. Figure 1 .

[0019] Figure 3 This is a schematic diagram of the seat tube clamp provided by this utility model. Figure 2 .

[0020] Figure 4 This is a schematic diagram of the seat tube clamp provided by this utility model. Figure 3 .

[0021] Figure label:

[0022] 100. Connecting component; 110. Stud; 111. Connecting ring; 120. Adjusting cap; 121. Guide sleeve; 122. Iron washer; 130. Limit nut;

[0023] 200, clamping sleeve; 210, first clamping seat; 220, second clamping seat; 230, lifting lug; 240, locking platform; 250, clamping platform;

[0024] 300. Handle; 310. Grip; 311. Reinforcing rib; 312. Outer protective plate; 313. Inner protective plate; 320. First hinge; 321. First axle cap; 322. First pin; 330. Second hinge; 331. Second axle cap; 332. Second pin;

[0025] 400. Copper gasket. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] The following is combined Figures 1 to 4 This invention describes the seat tube clamp.

[0028] The utility model provides a seat pipe clamp, including connecting piece 100, the C type's clamping sleeve 200 and the U type's handle 300, the first end of clamping sleeve 200 is equipped with first clamping seat 210, the second end of clamping sleeve 200 is equipped with second clamping seat 220, connecting piece 100 is located at the first side of clamping sleeve 200, the first end of connecting piece 100 is in proper order and penetrates second clamping seat 220 and first clamping seat 210, the second end of connecting piece 100 is hinged with the first end of handle 300, be equipped with copper gasket 400 between the first end of handle 300 and second clamping seat 220, the second side of clamping sleeve 200 is equipped with lifting lug 230, the second end of handle 300 is hinged with lifting lug 230. It can be understood that seat pipe clamp is used to lock and fix seat connecting pipe and frame fixing pipe, so that the height of seat satisfies the demand of rider. Among them, seat connecting pipe is inserted into frame fixing pipe, the C type's clamping sleeve 200 is sleeved outside frame fixing pipe, the U type's handle 300 is hinged with clamping sleeve 200 through connecting piece 100, and then realizes locking or loosening by rotating handle 300, corresponding the height adjustment of seat is completed.

[0029] Specifically, the first end of the clamping sleeve 200 is provided with a first clamping seat 210, and the second end of the clamping sleeve 200 is provided with a second clamping seat 220. The first clamping seat 210 and the second clamping seat 220 are both located on the first side of the clamping sleeve 200, as shown in Figure 1 The first side of the clamping sleeve 200 is the lower side. The clamping sleeve 200 is an integrally cast component to ensure the overall structural strength.

[0030] Further, the connecting piece 100 is arranged on the first side of the clamping sleeve 200 to connect the first side of the clamping sleeve 200 and the first end of the handle 300. Specifically, the first end of the connecting piece 100 penetrates the first clamping seat 210 and the second clamping seat 220 in sequence, as shown in Figure 1 The right end of the connecting piece 100 penetrates the second clamping seat 220 and the first clamping seat 210 from left to right in sequence. The first end of the handle 300 is hinged with the second end of the connecting piece 100 to enable the first end of the handle 300 to rotate relative to the clamping sleeve 200.

[0031] The first end of the handle 300 is provided with a copper gasket 400 between the second clamping seat 220. By arranging the copper gasket 400, the wear of the first end of the handle 300 and the second clamping seat 220 during the rotation of the handle 300 relative to the clamping sleeve 200 is effectively prevented. Compared with the existing plastic gasket, the copper gasket 400 improves the wear resistance, and the copper gasket 400 has a certain toughness to ensure the locking strength and further improve the firmness and safety. It should be noted that the copper gasket 400 is provided with a through hole and is sleeved on the connecting piece 100, that is, the first end of the connecting piece 100 penetrates the through hole of the copper gasket 400, the second clamping seat 220, and the first clamping seat 210 in sequence.

[0032] Further, the second side of the sleeve 200 is provided with a lifting lug 230, the second end of the handle 300 is hinged with the lifting lug 230, and the second end of the handle 300 can be rotated relative to the sleeve 200.

[0033] It should be noted that, as shown in Figure 1 , Figure 3 and Figure 4 , the seat tube clamp is in a locked state at this time.

[0034] According to the seat tube clamp provided by the utility model, the connecting piece 100 comprises a stud 110 and an adjusting cap 120, the adjusting cap 120 is provided with a threaded hole matched with the stud 110 in screwing, the adjusting cap 120 is arranged on the side of the first clamp seat 210 away from the second clamp seat 220, the first end of the stud 110 penetrates the second clamp seat 220 and the first clamp seat 210 in sequence, and the second end of the stud 110 is provided with a connecting ring 111, and the first end of the handle 300 is hinged with the connecting ring 111 through a first pin shaft 322. It can be understood that the stud 110 is provided with a thread, and the adjusting cap 120 is provided with a threaded hole, so that the adjusting cap 120 is screwed on the first end of the stud 110. The adjusting cap 120 is arranged on the side of the first clamp seat 210 away from the second clamp seat 220, as shown in Figure 1 , the adjusting cap 120 is arranged on the right side of the first clamp seat 210.

[0035] Further, the first end of the stud 110 penetrates the second clamp seat 220 and the first clamp seat 210 in sequence, and then is screwed with the adjusting cap 120, so that the distance between the first clamp seat 210 and the second clamp seat 220 can be adjusted by screwing the adjusting cap 120, that is, the initial clamping strength of the sleeve 200 on the frame fixing tube can be adjusted.

[0036] Further, the second end of the stud 110 is provided with the connecting ring 111, and the first end of the handle 300 is hinged with the connecting ring 111 through the first pin shaft 322, so that the handle 300 can be rotated.

[0037] It should be noted that the second end of the handle 300 is hinged with the lifting lug 230 through a second pin shaft 332. In order to prevent the first pin shaft 322 and the second pin shaft 332 from falling off, the first end of the first pin shaft 322 is provided with a first end cap, the second end of the first pin shaft 322 is riveted with a first shaft cap 321, so that the first pin shaft 322 is limited and clamped; the first end of the second pin shaft 332 is provided with a second end cap, and the second end of the second pin shaft 332 is riveted with a second shaft cap 331, so that the second pin shaft 332 is limited and clamped.

[0038] According to the utility model provides a kind of seat pipe clamp, connecting piece 100 further include limiting nut 130, limiting nut 130 is fixedly connected with the first end of stud 110 by screwing, to limit adaptation with adjusting cap 120.It can be understood that, to prevent adjusting cap 120 from being excessively screwed and falling off stud 110, the first end of stud 110 is fixed with limiting nut 130, to limit adjusting cap 120.It needs to be explained that, the end of limiting nut 130 fixedly connected with the first end of stud 110, play the effect of damping.

[0039] According to the utility model provides a kind of seat pipe clamp, adjusting cap 120 is provided with counterbore at the end away from first clamping seat 210, counterbore is used to accommodate limiting nut 130.It can be understood that, as shown in Figure 1 The right end of adjusting cap 120 is provided with counterbore, when adjusting cap 120 is screwed to the rightmost end of stud 110, limiting nut 130 is located in counterbore, to limit damping effect.

[0040] According to the utility model provides a kind of seat pipe clamp, first clamping seat 210 is provided with first perforation, adjusting cap 120 is provided with guide sleeve 121 at the end close to first clamping seat 210, stud 110 is arranged in guide sleeve 121, guide sleeve 121 is arranged in first perforation.It can be understood that, first clamping seat 210 is provided with first perforation, the left end of adjusting cap 120, as shown in Figure 1 The right end of adjusting cap 120 is provided with guide sleeve 121, stud 110 is arranged in guide sleeve 121, and then is screwed with adjusting cap 120.Guide sleeve 121 is arranged in first perforation, when adjusting cap 120 is screwed, guide sleeve 121 moves synchronously with adjusting cap 120 in first perforation.

[0041] In one embodiment, the first perforation is provided with inner flange at the end close to second clamping seat 220, iron pad 122 is arranged in first perforation, inner flange is used to support iron pad 122, and limiting adjusting cap 120, iron pad 122 is matched with guide sleeve 121, to prevent guide sleeve 121 from contacting and wearing inner flange.It needs to be explained that, iron pad 122 is sleeved on stud 110.

[0042] In the embodiment, the left side of clamping sleeve 200 is provided with locking platform 240, locking platform 240 is provided with threaded hole, threaded hole is used to install jacking bolt, to strengthen the fixing strength between clamping sleeve 200 and frame fixing pipe.

[0043] According to the utility model provides a kind of seat pipe clamp, second clamping seat 220 is provided with second perforation, second perforation, first perforation and stud 110 are coaxial.It can be understood that, second clamping seat 220 is provided with second perforation matched with stud, second perforation, first perforation, guide sleeve 121, adjusting cap 120 and stud 110 are coaxial, to ensure the smoothness and convenience of adjustment.

[0044] According to the seat pipe clamp, the first end of the handle 300 is provided with a first hinged part 320 which is hingedly matched with the second end of the connecting piece 100, and the side of the second clamping seat 220 close to the first hinged part 320 is provided with an arc-shaped groove which is matched with the first hinged part 320, and the copper gasket 400 is attached in the arc-shaped groove. It can be understood that the first hinged part 320 comprises a first hinged plate and a second hinged plate which are arranged in parallel, and the first hinged plate and the second hinged plate are arranged at the first end of the handle 300 and form a U shape, and the connecting ring 111 is located between the first hinged plate and the second hinged plate. The first pin shaft 322 penetrates the first hinged plate, the connecting ring 111 and the second hinged plate, so as to realize the hinging between the first end of the handle 300 and the connecting ring 111.

[0045] Further, the first hinged plate and the second hinged plate are arc-shaped at the end close to the second clamping seat 220, as shown in Figure 1 , that is, the right end of the first hinged plate and the second hinged plate. The side of the second clamping seat 220 close to the first hinged part 320 is provided with an arc-shaped groove and is matched with the arc of the first hinged part 320, as shown in Figure 1 .

[0046] Among them, the copper gasket 400 is arranged in an arc-shaped structure and is attached in the arc-shaped groove, and then the first hinged part 320 and the copper gasket 400 are located in the arc-shaped groove, at this time, the first hinged part 320 can rotate relative to the copper gasket 400 and the second clamping seat 220, the copper gasket 400 completely isolates the contact between the first hinged part 320 and the second clamping seat 220, so as to avoid abrasion, and at the same time, the arc design ensures the smooth rotation and the overall appearance.

[0047] In the embodiment, the second end of the handle 300 is provided with a second hinged part 330, the second hinged part 330 comprises a third hinged plate and a fourth hinged plate which are arranged in parallel, and the third hinged plate and the fourth hinged plate are arranged at the second end of the handle 300 and form a U shape, and the lifting lug 230 is located between the third hinged plate and the fourth hinged plate and realizes the hinging between the second hinged part 330 and the lifting lug 230 through the second pin shaft 332.

[0048] According to the seat pipe clamp, the back side of the handle 300 is provided with a reinforcing rib 311. It can be understood that, as shown in Figure 4 , the back side of the grip 310 of the handle 300 is provided with a plurality of reinforcing ribs 311, so as to improve the overall structural strength of the grip 310.

[0049] In one embodiment, the inner side of the handle 310 is provided with an inner guard plate 313, and the outer side of the handle 310 is provided with an outer guard plate 312, wherein the inner guard plate 313, the outer guard plate 312 and the reinforcing rib 311 are located on the back side of the handle 310, and the reinforcing rib 311 is located between the inner guard plate 313 and the outer guard plate 312. The inner guard plate 313, the outer guard plate 312, the reinforcing rib 311 and the handle 310 are integrally formed, which ensures the structural strength and aesthetics of the whole handle 300, and facilitates the operation of the handle 300 by the rider.

[0050] According to the seat pipe clamp provided by the utility model, one side of the first clamping seat 210 towards the second clamping seat 220 is provided with a first inclined surface, one side of the second clamping seat 220 towards the first clamping seat 210 is provided with a second inclined surface, and the first inclined surface is parallel to the second inclined surface. Figure 1 As shown in the drawings, the opposite sides of the first clamping seat 210 and the second clamping seat 220 are both provided with an inclined surface, wherein the first clamping seat 210 is provided with a first inclined surface, the second clamping seat 220 is provided with a second inclined surface, the first inclined surface and the second inclined surface are arranged in parallel, and the locking degree and the fitting degree are improved.

[0051] As shown in the drawings, Figure 3 and Figure 4 As shown in the drawings, the inner side of the upper end of the clamping sleeve 200 is provided with a clamping platform 250, when the clamping sleeve 200 is sleeved on the fixed pipe of the bicycle frame, the clamping platform 250 provides a pre-clamping force, and then cooperates with the locking of the handle 300, so that the seat connecting pipe is clamped in the fixed pipe of the bicycle frame, and the clamping strength is ensured.

[0052] The operation process of the seat pipe clamp provided by the utility model is as follows:

[0053] The adjusting cap 120 is screwed to the end of the first end of the stud 110 (the handle 300 is in a horizontal position and an open state), at this time, the limiting nut 130 is located in the counterbore of the adjusting cap 120, and correspondingly, the inner diameter of the clamping sleeve 200 is in a maximum state. The clamping sleeve 200 is sleeved on the upper end of the fixed pipe of the bicycle frame, the seat connecting pipe is inserted into the fixed pipe of the bicycle frame, and the height of the seat is adjusted correspondingly.

[0054] The adjusting cap 120 is screwed, so that the first clamping seat 210 and the second clamping seat 220 are close to each other, until the adjusting cap 120 is screwed to the maximum limit (as a criterion for not being screwed), at this time, the clamping platform 250 exerts a pre-tightening force on the fixed pipe of the bicycle frame, and the seat connecting pipe and the fixed pipe of the bicycle frame are relatively fixed.

[0055] The handle 300 in the horizontal position is turned downward to a vertical state, due to the cooperation of the first hinge part 320 and the arc-shaped groove, the first hinge part 320 rotates in the arc-shaped groove, and in the process of rotating the handle 300, the inner diameter of the clamping sleeve 200 decreases, the locking force increases, and the relative locking of the fixed pipe of the bicycle frame and the seat connecting pipe is realized.

[0056] When the seat height needs to be adjusted again, first rotate the handle 300 from the vertical state to the horizontal state to release the locking state, and then rotate the handle 300 to the vertical state when the seat is adjusted to the appropriate height, which is convenient to operate and has high reliability. During the rotation of the handle 300, the copper gasket 400 effectively isolates the contact friction between the first hinge part 320 and the second clamp seat 220, and at the same time, the toughness of the copper gasket 400 can withstand a large amount of extrusion force, ensuring the stability during riding.

[0057] The utility model also provides a bicycle, including above -mentioned seat tube clamp.

[0058] The utility model provides a seat tube clamp and bicycle, including set connecting piece, C type's clamping sleeve and U type's handle, the first end of clamping sleeve is equipped with first clamp seat, the second end of clamping sleeve is equipped with second clamp seat, and connecting piece is located at the first side of clamping sleeve, and the first end of connecting piece penetrates first clamp seat and second clamp seat in proper order, and the second end of connecting piece is hinged with the first end of handle, and copper gasket is equipped between the first end of handle and second clamp seat, and the second side of clamping sleeve is equipped with lug, and the second end of handle is hinged with lug, through setting copper gasket, when handle rotates, effectively prevent the first end of handle and second clamp seat friction, and copper gasket has certain flexibility and wear resistance, improve the wear resistance and locking strength of seat tube clamp, and further improve the safety, and simultaneously, convenient operation has high reliability.

[0059] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it still can modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the utility model embodiments.

Claims

1. A seat tube clamp, characterized in that, The connecting piece, the C-shaped sleeve and the U-shaped handle are included, the first end of the sleeve is provided with a first clamping base, the second end of the sleeve is provided with a second clamping base, the connecting piece is arranged on the first side of the sleeve, the first end of the connecting piece penetrates the second clamping base and the first clamping base in sequence, the second end of the connecting piece is hinged with the first end of the handle, a copper gasket is arranged between the first end of the handle and the second clamping base, the second side of the sleeve is provided with a lifting lug, and the second end of the handle is hinged with the lifting lug.

2. The seat tube clamp of claim 1, wherein, The connecting piece includes a stud and an adjusting cap, the adjusting cap is provided with a threaded hole matched with the stud in screwing, the adjusting cap is arranged on the side of the first clamping base away from the second clamping base, the first end of the stud penetrates the second clamping base and the first clamping base in sequence, and the second end of the stud is provided with a connecting ring, and the first end of the handle is hinged with the connecting ring through a first pin shaft.

3. The seat tube clamp of claim 2, wherein, The connecting piece further includes a limiting nut, the limiting nut is screwed and fixed on the first end of the stud, and is matched with the adjusting cap in limiting.

4. The seat tube clamp of claim 3, wherein, The end of the adjusting cap away from the first clamping base is provided with a counterbore, and the counterbore is used to accommodate the limiting nut.

5. The seat tube clamp of claim 2, wherein, The first clamping base is provided with a first through hole, the end of the adjusting cap close to the first clamping base is provided with a guide sleeve, the stud is arranged in the guide sleeve, and the guide sleeve is arranged in the first through hole.

6. The seat tube clamp of claim 5, wherein, The second clamping base is provided with a second through hole, the second through hole, the first through hole and the stud are coaxial.

7. The seat tube clamp of claim 1, wherein The first end of the handle is provided with a first hinge part matched with the second end of the connecting piece in hinging, one side of the second clamping base close to the first hinge part is provided with an arc-shaped groove matched with the first hinge part, and the copper gasket is attached in the arc-shaped groove.

8. The seat tube clamp of claim 1, wherein, The back side of the handle is provided with a reinforcing rib.

9. The seat tube clamp of claim 1, wherein, One side of the first clamping base towards the second clamping base is provided with a first inclined surface, one side of the second clamping base towards the first clamping base is provided with a second inclined surface, and the first inclined surface is parallel to the second inclined surface.

10. A bicycle characterized in that, The seat pipe clamp includes the seat pipe clamp as claimed in any one of claims 1 to 9. The connecting piece, the C-shaped sleeve and the U-shaped handle are included, the first end of the sleeve is provided with a first clamping base, the second end of the sleeve is provided with a second clamping base, the connecting piece is arranged on the first side of the sleeve, the first end of the connecting piece penetrates the second clamping base and the first clamping base in sequence, the second end of the connecting piece is hinged with the first end of the handle, a copper gasket is arranged between the first end of the handle and the second clamping base, the second side of the sleeve is provided with a lifting lug, and the second end of the handle is hinged with the lifting lug.

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