Double-end suction holder

Abstract

The utility model discloses a double-head suction holder which comprises a holding handle, a first tensioning handle, a first cover body, a first elastic suction piece, a first connecting piece, a first switch, a first elastic piece, a second tensioning handle, a second cover body, a second elastic suction piece, a second connecting piece, a second switch and a linkage handle. When the double-end suction holder is used, the holding handle is held by a single hand, and the linkage handle is hooked by fingers of the hand to move along the direction close to the holding handle, so that the locking of the first tensioning handle by the first switch and the locking of the second tensioning handle by the second switch can be automatically completed; therefore, the first elastic adsorption part and the second elastic adsorption part always adsorb the article at the same time, and the stability during adsorption is enhanced due to simultaneous adsorption of the first elastic adsorption part and the second elastic adsorption part.

Description

TECHNICAL FIELD

[0001] The utility model relates to a double -end holding device. BACKGROUND

[0002] The holding device is a device for holding building materials and other objects, and has good adsorption effect on objects with flat surfaces. The holding device currently in use needs to be held tightly around the tension handle after adsorbing the object, and then the tension handle is locked by operating the control switch to keep the object adsorbed at all times. However, in some cases, for example, when the user can only use the holding device with one hand, it is not convenient to lock the tension handle by operating it with one hand. Moreover, the current holding device usually has only one adsorption unit, which is not stable when adsorbing large objects. SUMMARY

[0003] The utility model solves the technical problem to overcome the defects in the prior art and provides a double -end holding device.

[0004] The utility model solves the above technical problem through the following technical scheme:

[0005] A double -end holding device, comprising:

[0006] The holding handle is provided with a containing groove, a first notch and a second notch which are in communication with the containing groove;

[0007] The first tension handle is rotatably installed in the containing groove, and the first tension handle comprises a first clamping portion, a first connecting portion and a first pressing portion which are connected with each other;

[0008] The first cover body comprises a first side wall and a first bottom, the first bottom is connected with one end of the first side wall and connected with one end of the holding handle, and a first avoiding hole in communication with the containing groove is formed in the first bottom;

[0009] The first elastic suction member is connected with the first side wall and covers the opening of the first cover body;

[0010] The first connecting piece is connected with the first elastic suction member at one end and connected with the first connecting portion through the first avoiding hole at the other end;

[0011] The first switch is rotatably installed in the containing groove and exposed in the first notch, and the first switch comprises a second clamping portion, a second connecting portion and a second pressing portion which are connected in sequence, and the second clamping portion can be clamped and locked with the first clamping portion;

[0012] The first elastic member connects the first switch and the holding handle, and the first elastic member applies an elastic force to the first switch in the first direction.

[0013] A second tensioning handle is rotatably installed in the accommodating groove, and comprises a third clamping portion, a third connecting portion and a third pressing portion connected with each other;

[0014] A second cover body comprises a second side wall and a second bottom, the second bottom is connected with one end of the second side wall and connected with the other end of the holding handle, and a second avoiding hole is formed in the second bottom and communicated with the accommodating groove;

[0015] A second elastic suction member is connected with the second side wall and covers the opening of the second cover body;

[0016] A second connecting member is connected with one end of the second elastic suction member and connected with the other end of the third connecting portion through the second avoiding hole;

[0017] A second switch is rotatably installed in the accommodating groove and exposed in the second gap, and comprises a fourth clamping portion, a fourth connecting portion and a fourth pressing portion connected with each other in sequence, and the fourth clamping portion can be clamped and locked with the third clamping portion;

[0018] A second elastic member is connected with the second switch and the holding handle, and the second elastic member applies an elastic force to the second switch in a second direction opposite to the first direction;

[0019] A linkage handle is connected with one end of the first pressing portion and the other end of the third pressing portion;

[0020] When the linkage handle is held and moved close to the holding handle, the first pressing portion drives the first clamping portion to rotate in the first direction and drives the second clamping portion to rotate by a certain angle, then the first clamping portion is separated from the second clamping portion, and the second clamping portion is automatically reset to a position capable of limiting the rotation of the first clamping portion in the second direction under the action of the first elastic member; the third pressing portion drives the third clamping portion to rotate in the second direction and drives the fourth clamping portion to rotate by a certain angle, then the fourth clamping portion is separated from the third clamping portion, and the fourth clamping portion is automatically reset to a position capable of limiting the rotation of the third clamping portion in the first direction under the action of the second elastic member.

[0021] In some embodiments, a first protrusion is arranged on the first pressing portion;

[0022] A second protrusion is arranged on the third pressing portion;

[0023] One end of the linkage handle is provided with a first guide structure in sliding connection with a first protrusion, and the other end of the linkage handle is provided with a second guide structure in sliding connection with a second protrusion.

[0024] In some embodiments, the linkage handle is provided with a groove, the first guide structure is a first waist-shaped hole transversely penetrating the groove, the second guide structure is a second waist-shaped hole transversely penetrating the groove, the first protrusion and the second protrusion are arranged in pairs, the first pressing part is inserted into the groove and is in sliding connection with the first waist-shaped hole through a pair of first protrusions, and the second pressing part is inserted into the groove and is in sliding connection with the second waist-shaped hole through a pair of second protrusions.

[0025] In some embodiments, the first clamping part comprises a first arc-shaped surface and a first flat surface connected with each other, and the second clamping part comprises a second arc-shaped surface and a second flat surface connected with each other.

[0026] When the first clamping part rotates in a first direction, the first arc-shaped surface slides along the second arc-shaped surface and drives the second clamping part to rotate by a certain angle, and after the first arc-shaped surface is separated from the second arc-shaped surface, the second clamping part rotates in the first direction to reset to the first flat surface being in contact with the second flat surface.

[0027] In some embodiments, the third clamping part comprises a third arc-shaped surface and a third flat surface connected with each other, and the fourth clamping part comprises a fourth arc-shaped surface and a fourth flat surface connected with each other.

[0028] When the third clamping part rotates in a second direction, the third arc-shaped surface slides along the fourth arc-shaped surface and drives the fourth clamping part to rotate by a certain angle, and after the third arc-shaped surface is separated from the fourth arc-shaped surface, the third clamping part rotates in the first direction to reset to the third flat surface being in contact with the fourth flat surface.

[0029] In some embodiments, the linkage handle further comprises:

[0030] a third elastic member installed between the first elastic suction member and the first bottom, the third elastic member applying an elastic force to the first elastic suction member to keep the first elastic suction member away from the first bottom.

[0031] In some embodiments, the linkage handle further comprises:

[0032] In some embodiments, the third elastic member is a compression spring, which is sleeved outside the first connecting member.

[0033] And / or, the fourth elastic member is a compression spring, which is sleeved outside the second connecting member.

[0034] In some embodiments, the first connecting part comprises a first side plate and a second side plate, the first side plate is provided with a first guide slot, the second side plate is provided with a second guide slot, the first guide slot and the first guide slot are inclined to the axis of the connecting member; the first connecting member is arranged between the first side plate and the second side plate, and the first connecting member is provided with a first guide part and a second guide part, the first guide part is slidingly installed in the first guide slot, and the second guide part is slidingly installed in the second guide slot.

[0035] The third connecting part is the same in size, shape and dimension as the first connecting part, and the assembly relationship between the second connecting member and the third connecting part is the same as the assembly relationship between the first connecting member and the first connecting part.

[0036] In some embodiments, the first clamping part comprises a third side plate and a fourth side plate which are the same in shape and size, the third side plate is an extension of the first side plate, and the fourth side plate is an extension of the second side plate.

[0037] The third clamping part is the same in size, shape and dimension as the first clamping part.

[0038] In some embodiments, further comprising:

[0039] A reinforcing sheet is arranged in the first elastic suction accessory and connected with the first connecting member, and arranged in the second elastic suction accessory and connected with the second connecting member.

[0040] In some embodiments, the first tensioning handle and the second tensioning handle are an integral structure; and / or, the first switch and the second switch are an integral structure.

[0041] On the basis of common knowledge in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, each preferred example of the utility model is obtained.

[0042] The utility model discloses a positive progress effect lies in: using the double -end suction holder of the utility model only needs to hold the holding handle with single hand, and with the finger of this hand is hooked to the linkage handle and makes it along the direction of close to holding handle movement can automatically complete the locking of first switch to first tensioning handle, and the locking of second switch to second tensioning handle, and then make the first elastic suction accessory and second elastic suction accessory simultaneously keep suctioning to the article all the time, and the stability of suctioning is also enhanced when the first elastic suction accessory and second elastic suction accessory simultaneously suction. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1This is a schematic diagram showing the disassembled state of the dual-head suction holder according to a preferred embodiment of the present invention.

[0044] Figure 2 This is a cross-sectional view of the double-headed suction holder according to a preferred embodiment of the present invention.

[0045] Figure 3 This is a schematic diagram of the grip handle, the first cover, and the second cover of a preferred embodiment of the present invention.

[0046] Figure 4 This is a schematic diagram of the structure of the first tensioning handle in a preferred embodiment of the present invention.

[0047] Figure 5 This is a schematic diagram of the structure of the first switch in a preferred embodiment of the present invention.

[0048] Explanation of reference numerals in the attached figures:

[0049] Grip handle 1; receiving groove 11; first notch 12; second notch 13; first tension handle 2; first locking part 21; first arc-shaped surface 211; first flat surface 212; third side plate 213; fourth side plate 214; first connecting part 22; first side plate 221; first guide groove 2211; second side plate 222; second guide groove 2221; first pressing part 23; first protrusion 231; first cover 3; first side wall 31; first bottom 32; first clearance hole 321; first elastic suction member 4; first connecting member 5; 6. Switch; 61. Second snap-fit ​​part; 611. Second arc-shaped surface; 612. Second flat surface; 62. Second connecting part; 63. Second pressing part; 7. Third elastic element; 8. Reinforcing piece; 9. Second tensioning handle; 91. Third snap-fit ​​part; 92. Third connecting part; 93. Third pressing part; 931. Second protrusion; 10. Second cover; 110. Second elastic adsorption element; 120. Second connecting element; 130. Second switch; 1301. Fourth snap-fit ​​part; 140. Linkage handle; 1401. First guide structure; 1402. Second guide structure; 150. Detailed Implementation

[0050] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0051] It should be noted that in the claims and specification of this patent, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0052] like Figures 1-5 As shown, this embodiment discloses a dual-head suction device, which includes a grip handle 1, a first tension handle 2, a first cover 3, a first elastic suction member 4, a first connector 5, a first switch 6, a first elastic member, a second tension handle 9, a second cover 10, a second elastic suction member 110, a second connector 120, a second switch 130, and a linkage handle 140.

[0053] The handle 1 is a C-shaped handle. A receiving groove 11 is provided on one side of the handle. A first notch 12 and a second notch 13 communicating with the receiving groove 11 are provided on the first bottom 32 of the groove. The first notch 12 and the second notch 13 are located at the upper and lower arc corners of the C-shape, respectively.

[0054] The first tensioning handle 2 is rotatably installed in the receiving groove 11. The first tensioning handle 2 includes a first snap-fit ​​part 21, a first connecting part 22 and a first pressing part 23 that are connected to each other. In order to realize the rotation of the first tensioning handle 2 in the mounting groove of the grip handle 1, the first snap-fit ​​part 21 or the first connecting part 22 or the first pressing part 23 can be connected to the side of the groove of the receiving groove 11 by means of a rotating shaft.

[0055] In this embodiment, the first cover 3 is a flat-bottomed bowl-shaped structure, which includes an annular first sidewall 31 and a generally circular first bottom 32. The first bottom 32 is connected to one end of the first sidewall 31 and to one end of the handle 1, and a first clearance hole 321 communicating with the receiving groove 11 is provided on the first bottom 32. However, in other embodiments, the first bottom 32 of the first cover 3 may also be rectangular, polygonal or other irregular shapes.

[0056] The first elastic adsorption member 4 is connected to the first sidewall 31 and covers the gap in the first cover 3. In this embodiment, the first elastic adsorption member 4 is installed on the inner side of the first sidewall 31 of the first cover 3 and extends to the outer side, and a hollow interlayer is formed between the first elastic adsorption member 4 and the first bottom 32 of the first cover 3.

[0057] One end of the first connector 5 is connected to the first elastic adsorption member 4, and the other end passes through the first clearance hole 321 and is connected to the first connecting part 22 of the first tensioning handle 2.

[0058] The first switch 6 is rotatably mounted in the receiving groove 11 and exposed in the first notch 12. The first switch 6 includes a second locking part 61, a second connecting part 62 and a second pressing part 63 connected from top to bottom. The second locking part 61 can be locked with the first locking part 21, that is, the first tensioning handle 2 can be locked and unlocked by the first switch 6.

[0059] The first elastic element (not shown in the figure) connects the first switch 6 and the grip handle 1. The first elastic element applies force to the first switch 6 in a first direction (in the figure). Figure 2 The elastic force that rotates clockwise (in the middle).

[0060] The second tensioning handle 9 is rotatably mounted in the receiving groove 11. The second tensioning handle 9 includes a third locking part 91, a third connecting part 92, and a third pressing part 93 that are interconnected. Similarly, in order to enable the second tensioning handle 2 to rotate in the mounting groove of the grip handle 1, the third locking part 91, the third connecting part 92, or the third pressing part 93 can be connected to the side of the groove of the receiving groove 11 by means of a pivot.

[0061] The second cover 10 includes a second sidewall and a second bottom. The second bottom is connected to one end of the second sidewall and to the other end of the handle. A second clearance hole communicating with the receiving groove 11 is provided on the second bottom.

[0062] The second elastic adsorption member 110 is connected to the second sidewall and covers the opening of the second cover 10. In this embodiment, the second elastic adsorption member 110 is installed on the inner side of the second sidewall of the second cover 10 and extends to the outer side, and a hollow interlayer is formed between the second elastic adsorption member 110 and the second bottom 32 of the second cover 10.

[0063] One end of the second connector 120 is connected to the second elastic adsorption member 110, and the other end passes through the second clearance hole and is connected to the third connector 92.

[0064] The second switch 130 is rotatably mounted in the receiving groove 11 and exposed in the second notch 13. The second switch 130 includes a fourth latching part 1301, a fourth connecting part and a fourth pressing part connected in sequence. The fourth latching part 1301 and the third latching part 91 can be latched and locked.

[0065] The second elastic element (not shown in the figure) connects the second switch 130 and the grip handle 9. The second elastic element applies an elastic force to the second switch in a second direction, which is opposite to the first direction.

[0066] One end of the linkage handle 140 is connected to the first pressing part 23, and the other end is connected to the third pressing part 93.

[0067] When the linkage handle 140 is held close to the grip handle 1, the first pressing part 23 causes the first locking part 21 to rotate in the first direction. The first locking part 21 will then contact the second locking part 61 and cause the second locking part 61 to rotate. After rotating a certain angle, the first locking part 21 disengages from the second locking part 61. Under the action of the first elastic member, the second locking part 61 rotates back in the first direction to a position that can limit the first locking part 21 from rotating in the second direction (in the second direction). Figure 2 The position is rotated counterclockwise. At the same time, the third pressing part 93 drives the third locking part 91 to rotate in the second direction and drives the fourth locking part 1301 to rotate at a certain angle. Then, the fourth locking part 1301 disengages from the third locking part 91. Under the action of the second elastic member, the fourth locking part 1301 automatically rotates and resets in the second direction to a position that can limit the rotation of the third locking part 91 in the first direction.

[0068] In this embodiment, when it is necessary to use the dual-head suction device to hold an object with one hand, simply hold the handle 1 with one hand to attach the first elastic suction member 4 and the second elastic suction member 110 to the object, and then hook the linkage handle 140 with the fingers of that hand. The linkage handle 140 drives the first tension handle 2 and the second tension handle 9 to rotate. The first pressing part 23 of the first tension handle 2 rotates it in the direction close to the handle 1. The first connecting part 22 of the first tension handle 2 rotates synchronously and drives the first elastic suction member 4 to deform into the first bottom 32 of the first cover 3 through the first connecting member 5, and the first elastic suction member 4 sucks up the object. The first locking part 21 of the first tension handle 2 also rotates synchronously until it contacts the second locking part 61 of the first switch 6 and drives the second locking part 61 to rotate. After rotating a certain angle, the first locking part 21 will automatically disengage from the second locking part 61. Under the action of the first elastic member, the second locking part 61 will automatically rotate and reset in the first direction to a position that can limit the rotation of the first locking part 21 in the second direction. The first locking part 21 cannot rotate due to the interference of the second locking part 61. At this time, the first connecting member 5 also keeps the first elastic adsorption member 4 in a concave deformation, thus maintaining the adsorption of the item. Similarly, the rotation of the second tightening handle 9 will enable the second elastic adsorption member 110 to maintain the adsorption of the item synchronously through the second connecting member 120. Therefore, using the dual-head suction device of this embodiment, one only needs to hold the grip handle 1 with one hand and hook the linkage handle 140 with the fingers of the same hand to move it in the direction close to the grip handle 1. This will automatically complete the locking of the first tightening handle 2 by the first switch 6 and the locking of the second tightening handle 9 by the second switch 130. This will make the first elastic adsorption member 4 and the second elastic adsorption member 110 simultaneously maintain the adsorption of the item. The simultaneous adsorption of the first elastic adsorption member 4 and the second elastic adsorption member 110 also enhances the stability during the suction.

[0069] In this embodiment, a first protrusion 231 is provided on the first pressing part 23, and a second protrusion 931 is provided on the third pressing part.

[0070] One end of the linkage handle 140 is provided with a first guide structure 1401 that is slidably connected to the first protrusion 231, and the other end of the linkage handle is provided with a second guide structure 1402 that is slidably connected to the second protrusion 931.

[0071] Furthermore, the linkage handle 140 is provided with a groove, the first guide structure 1401 is a first waist-shaped hole that passes through the groove laterally, the second guide structure is a second waist-shaped hole that passes through the groove laterally, the first protrusion 231 and the second protrusion 931 are both provided in pairs, one end of the first pressing part 23 is inserted into the groove and is slidably connected to the first waist-shaped hole through a pair of first protrusions 231, and the second pressing part 93 is inserted into the groove and is slidably connected to the second waist-shaped hole through a pair of second protrusions 931.

[0072] In this embodiment, any of the above-mentioned structural forms can improve the rotation efficiency of the linkage handle 140 driving the first pressing part 23 and the second pressing part 93.

[0073] Furthermore, in this embodiment, the first snap-fit ​​portion 21 includes a first arcuate surface 211 and a first flat surface 212 that are connected to each other; the second snap-fit ​​portion 61 includes a second arcuate surface 611 and a second flat surface 612 that are connected to each other.

[0074] When the first locking part 21 rotates in the first direction, the first arc-shaped surface 211 slides along the second arc-shaped surface 611 and drives the second locking part 61 to rotate at a certain angle. After the first arc-shaped surface 211 disengages from the second arc-shaped surface 611, the second locking part 61 rotates in the first direction to reset until the first plane 212 contacts the second plane 612. When the two planes are in contact, the second locking part 61 can interfere with the rotation of the first locking part 21.

[0075] Similarly, the third snap-fit ​​portion 91 includes a third arcuate surface and a third plane that are interconnected; the fourth snap-fit ​​portion includes a fourth arcuate surface and a fourth plane that are interconnected.

[0076] When the third locking part rotates in the second direction, the third arc-shaped surface slides along the fourth arc-shaped surface and drives the fourth locking part to rotate at a certain angle. After the third arc-shaped surface separates from the fourth arc-shaped surface, the third locking part rotates in the first direction to reset until the third plane contacts the fourth plane.

[0077] In this embodiment, by adopting the above structural form, the automatic disengagement and automatic locking of the first latching part 21, the second latching part 61, the third latching part 93 and the fourth latching part 1301 can be achieved in a simple and reliable manner, which can save costs.

[0078] Furthermore, the dual-head suction device of this embodiment also includes a third elastic member 7 installed between the first elastic suction member 4 and the first bottom 32, the third elastic member 7 applying an elastic force to the first elastic suction member 4 to keep it away from the first bottom 32. And a fourth elastic member 150 installed between the second elastic suction member 110 and the second bottom, the fourth elastic member applying an elastic force to the second elastic suction member to keep it away from the second bottom.

[0079] In this embodiment, the third elastic element 7 allows the first elastic suction member 4 to automatically recover its deformation (from a concave state to a flat state) under the action of the third elastic element 7 after no force is applied to the first tightening handle 2. The second elastic suction member 110 can also automatically recover its deformation under the action of the fourth elastic element 150, thus automatically releasing the suction of the item. That is, when unlocking is required, simply press the second pressing part 63 to drive the second locking part 61 to rotate in the second direction, causing the second plane 612 to disengage from the first plane 212. The second locking part 61 no longer interferes with the rotation of the first locking part 21, and the first tightening handle 2 no longer applies force to the first connecting member 5. Thus, the third elastic element 7 can restore the deformation of the first elastic suction member 4 through its elastic restoring force. The unlocking steps of the second switch 130 are the same as those of the first switch 6. Therefore, the user only needs to use the fingers of the same hand to press the second pressing part 63 of the first switch 6 and the same position of the second switch 130 to release the item. Therefore, in this embodiment, the third elastic element 7 and the fourth elastic element 150 are provided so that, in addition to the user being able to use the dual-head suction device of this embodiment to perform the action of adsorbing the item with one hand, the user can also perform the action of releasing the item with one hand, thereby greatly improving the applicability of the dual-head suction device of this embodiment.

[0080] Furthermore, in this embodiment, the third elastic element 7 is a compression spring, which is sleeved on the outside of the first connecting member 5. In this embodiment, the compression spring sleeved on the first connecting member 5 not only makes more efficient use of space but also prevents the compression spring from shifting and failing. Furthermore, the fourth elastic element is a compression spring, which is sleeved on the outside of the second connecting member.

[0081] Further, in this embodiment, the first connecting part 22 includes a first side plate 221 and a second side plate 222. The first side plate 221 is provided with a first guide groove 2211, and the second side plate 222 is provided with a second guide groove 2221. The first guide groove 2211 and the first guide groove 2211 are inclined to the axis of the first connecting member 5. The first connecting member 5 is disposed between the first side plate 221 and the second side plate 222, and the first connecting member 5 is provided with a first guide part and a second guide part (both shown in the figure). The first guide part is slidably installed in the first guide groove 2211, and the second guide part is slidably installed in the second guide groove 2221.

[0082] In this embodiment, the third connecting part is the same as the first connecting part in size, shape and dimensions, and the assembly relationship between the second connecting member and the third connecting part is the same as the assembly relationship between the first connecting member and the first connecting part.

[0083] In this embodiment, the guide groove and guide part cooperate with each other to ensure the efficiency of the first tensioning handle 2 driving the first connecting member 5 to move, thereby ensuring the efficiency of the first elastic adsorption member 4 to deform and complete adsorption. It can also reduce the weight of the first tensioning handle 2, reduce the overall weight of the double-headed suction holder, and make it convenient to use.

[0084] Furthermore, in this embodiment, the first snap-fit ​​portion 21 includes a third side plate 213 and a fourth side plate 214 of the same shape and size. The third side plate 213 is an extension of the first side plate 221, and the fourth side plate 214 is an extension of the second side plate 222. The third snap-fit ​​portion 91 is the same size, shape, and dimension as the first snap-fit ​​portion 21.

[0085] In this embodiment, the above-described structure can further reduce the overall weight of the dual-head suction holder.

[0086] Furthermore, the dual-head suction device of this embodiment also includes a reinforcing piece 8 installed inside the first elastic suction member 4 and connected to the first connecting member 5. In addition, a reinforcing piece 8 is also installed inside the second elastic suction member and connected to the second connecting member. The reinforcing piece 8 can not only improve the connection strength between the first connecting member 5 and the first elastic suction member 4, but also improve the deformation speed of the first elastic suction member 4. That is, compared with the absence of a reinforcing piece 8, the first elastic suction member 4 is more concave when the first connecting member 5 is displaced by one unit length.

[0087] Furthermore, in this embodiment, the first tensioning handle 2 and the second tensioning handle 9 are integrated structures, as are the first switch 6 and the second switch 130. This integrated structural design can improve the structural strength of both.

Claims

1. A dual-head suction holder, characterized in that, include: The grip handle is provided with a receiving groove and a first notch and a second notch communicating with the receiving groove; A first tensioning handle is rotatably mounted in the receiving groove. The first tensioning handle includes a first snap-fit ​​portion, a first connecting portion, and a first pressing portion that are interconnected. The first cover includes a first sidewall and a first bottom. The first bottom is connected to one end of the first sidewall and to one end of the grip handle. A first clearance hole communicating with the receiving groove is provided on the first bottom. The first elastic adsorption element is connected to the first sidewall and covers the opening of the first cover; The first connector has one end connected to the first elastic adsorption member, and the other end passes through the first clearance hole and is connected to the first connecting part. A first switch is rotatably mounted in the receiving groove and exposed in the first notch. The first switch includes a second snap-fit ​​part, a second connecting part and a second pressing part connected in sequence. The second snap-fit ​​part can be snapped and locked with the first snap-fit ​​part. A first elastic element connects the first switch and the grip handle, and the first elastic element applies an elastic force to the first switch to rotate in a first direction; The second tensioning handle is rotatably mounted in the receiving groove. The second tensioning handle includes a third snap-fit ​​part, a third connecting part, and a third pressing part that are connected to each other. The second cover includes a second sidewall and a second bottom. The second bottom is connected to one end of the second sidewall and to the other end of the grip handle. A second clearance hole communicating with the receiving groove is provided on the second bottom. The second elastic adsorption element is connected to the second sidewall and covers the opening of the second cover; The second connector has one end connected to the second elastic adsorption member, and the other end passes through the second clearance hole and is connected to the third connector. The second switch is rotatably mounted in the receiving groove and exposed in the second notch. The second switch includes a fourth snap-fit ​​part, a fourth connecting part and a fourth pressing part connected in sequence. The fourth snap-fit ​​part can be snapped and locked with the third snap-fit ​​part. A second elastic element connects the second switch and the grip handle. The second elastic element applies an elastic force to the second switch in a second direction, which is opposite to the first direction. The linkage handle has one end connected to the first pressing part and the other end connected to the third pressing part; When the linkage handle is held close to the grip handle, the first pressing part drives the first locking part to rotate in the first direction and drives the second locking part to rotate at a certain angle. After this, the first locking part disengages from the second locking part. Under the action of the first elastic element, the second locking part automatically rotates back to the first direction to a position that can restrict the rotation of the first locking part in the second direction. The third pressing part drives the third locking part to rotate in the second direction and drives the fourth locking part to rotate at a certain angle. After this, the fourth locking part disengages from the third locking part. Under the action of the second elastic element, the fourth locking part automatically rotates back to the second direction to a position that can restrict the rotation of the third locking part in the first direction.

2. The dual-head suction holder as described in claim 1, characterized in that, The first pressing part is provided with a first protrusion; The third pressing part is provided with a second protrusion; One end of the linkage handle is provided with a first guide structure that is slidably connected to the first protrusion, and the other end of the linkage handle is provided with a second guide structure that is slidably connected to the second protrusion.

3. The dual-head suction holder as described in claim 2, characterized in that, The linkage handle is provided with a groove. The first guide structure is a first waist-shaped hole that passes through the groove laterally. The second guide structure is a second waist-shaped hole that passes through the groove laterally. The first protrusion and the second protrusion are arranged in pairs. The first pressing part is inserted into the groove and is slidably connected to the first waist-shaped hole through a pair of first protrusions. The second pressing part is inserted into the groove and is slidably connected to the second waist-shaped hole through a pair of second protrusions.

4. The dual-head suction holder as described in claim 1, characterized in that, The first snap-fit ​​portion includes a first arcuate surface and a first flat surface that are connected to each other; the second snap-fit ​​portion includes a second arcuate surface and a second flat surface that are connected to each other. When the first locking part rotates along the first direction, the first arc-shaped surface slides along the second arc-shaped surface and drives the second locking part to rotate at a certain angle. After the first arc-shaped surface separates from the second arc-shaped surface, the second locking part rotates in the first direction to reset until the first plane contacts the second plane. And / or, the third snap-fit ​​portion includes a third arcuate surface and a third plane that are interconnected; the fourth snap-fit ​​portion includes a fourth arcuate surface and a fourth plane that are interconnected; When the third locking part rotates along the second direction, the third arc-shaped surface slides along the fourth arc-shaped surface and drives the fourth locking part to rotate at a certain angle. After the third arc-shaped surface disengages from the fourth arc-shaped surface, the third locking part rotates in the first direction to reset until the third plane contacts the fourth plane.

5. The dual-head suction holder as described in claim 1, characterized in that, Also includes: A third elastic element is installed between the first elastic adsorption element and the first bottom, and the third elastic element applies an elastic force to the first elastic adsorption element to keep it away from the first bottom. And / or, a fourth elastic element, installed between the second elastic adsorption element and the second bottom, the fourth elastic element applying an elastic force to the second elastic adsorption element to keep it away from the second bottom.

6. The dual-head suction holder as described in claim 5, characterized in that, The third elastic element is a compression spring, which is sleeved on the outside of the first connecting member; And / or, the fourth elastic element is a compression spring, which is sleeved on the outside of the second connecting member.

7. The dual-head suction holder as described in claim 1, characterized in that, The first connecting part includes a first side plate and a second side plate. The first side plate is provided with a first guide groove, and the second side plate is provided with a second guide groove. The first guide groove and the second guide groove are inclined to the axis of the connecting member. The first connecting member is disposed between the first side plate and the second side plate, and the first connecting member is provided with a first guide part and a second guide part. The first guide part is slidably installed in the first guide groove, and the second guide part is slidably installed in the second guide groove. The second connecting part is the same in size, shape and dimensions as the first connecting part, and the assembly relationship between the second connecting part and the third connecting part is the same as the assembly relationship between the first connecting part and the first connecting part.

8. The dual-head suction holder as described in claim 7, characterized in that, The first snap-fit ​​portion includes a third side plate and a fourth side plate of the same shape and size, wherein the third side plate is an extension of the first side plate and the fourth side plate is an extension of the second side plate; The third snap-fit ​​part is the same in size, shape and dimensions as the first snap-fit ​​part.

9. The dual-head suction holder as described in claim 1, characterized in that, Also includes: A reinforcing sheet is installed inside the first elastic adsorption member and connected to the first connector, and inside the second elastic adsorption member and connected to the second connector.

10. The dual-head suction device as described in claim 1, characterized in that, The first tensioning handle and the second tensioning handle are integral structures; and / or, the first switch and the second switch are integral structures.

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