Upgrade version parallel clamp

Abstract

The utility model relates to the technical field of construction tools, in particular to an upgraded parallel clamp which comprises a fixed clamping plate, a movable clamping plate is arranged on one side of the fixed clamping plate, a fixedly-connected supporting rod is arranged on the face, close to the movable clamping plate, of the fixed clamping plate in a penetrating mode, and the movable clamping plate is sleeved on the outer side of the supporting rod in a sliding mode. The face, away from the fixed clamping plate, of the movable clamping plate is connected with a chuck, the outer side of the supporting rod is slidably sleeved with a limiting buckle, and the limiting buckle is located at the end of the chuck. According to the parallel clamp, the lower end of the movable clamping plate is connected with the chuck which is used for increasing elastic thrust and obliquely limiting the fixed movable clamping plate, so that the movable clamping plate can have continuous thrust in the process of clamping wood, the clamping stability of the parallel clamp to the wood is ensured, and the shaping precision of the wood is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction tools, in particular to an upgraded parallel clamp. Background Art

[0002] In furniture production, a parallel clamp is a commonly used fixture, which can be used to fix wood for processing or inspection. Usually, the parallel clamp is used to shape the wood after bonding or assembly to ensure the assembly accuracy of the wood.

[0003] A parallel clamp usually includes two clamping plates, which can move along a straight line to adapt to woods of different sizes. However, in the process of clamping wood with a traditional parallel clamp, it is difficult to keep the clamping degree of the parallel clamp on the wood all the time by the way of manually pushing the movable clamping plate to fix.

[0004] Therefore, it is necessary to provide an upgraded parallel clamp to solve the above technical problems. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides an upgraded parallel clamp. A clamping head is arranged at the end of the movable clamping plate to provide elastic thrust and oblique limit for the movable clamping plate, so that when the movable clamping plate clamps wood, the durable pushing of the movable clamping plate on the wood can be completed through the adjustment and cooperation of a pre-tightening rod and a pre-tightening part, thereby improving the clamping tightness of the parallel clamp and ensuring the shaping effect of the wood.

[0006] The upgraded parallel clamp provided by the utility model:

[0007] Comprises a fixed clamping plate, one side of the fixed clamping plate is provided with a movable clamping plate, a support rod which is fixedly connected is arranged through the side of the fixed clamping plate close to the movable clamping plate, the movable clamping plate is sleeved and slid on the outer side of the support rod, a clamping head is connected to the side of the movable clamping plate departing from the fixed clamping plate, the inner side of the clamping head comprises a pre-tightening rod, the pre-tightening rod is slidably sleeved on the outer side of the support rod, the other end of the pre-tightening rod is screwed with a pre-tightening part, the pre-tightening part is vertically connected with the pre-tightening rod in a cross shape, one end of the pre-tightening part is connected with a rotary universal joint, the end of the rotary universal joint departing from the pre-tightening part is rotationally limited on the inner side of the outer wall of the movable clamping plate, and a limit buckle is slidably sleeved on the outer side of the support rod, and the limit buckle is positioned at the end of the clamping head.

[0008] Preferably, the fixed splint is divided into a right combination piece and a left combination piece, a connecting piece is connected between the right combination piece and the left combination piece, the support rod is vertically inserted into the inner side of the connecting piece, symmetrical first horizontal patches are fixed on the upper and lower surfaces of the right combination piece and the left combination piece, and a second horizontal patch is fixed on a side of the movable splint close to the first horizontal patch. The design of the double combination piece allows the splint to be quickly disassembled and the damaged part to be replaced, thereby increasing the service life of the parallel clamp. The setting of the double-sided horizontal patch allows the device to be used in both directions. When it needs to be opened, the direction of the movable splint can be adjusted to open it.

[0009] Preferably, a locking hole is provided at the position where the connecting piece is connected to the strut, a locking rivet rod is passed through the inner side of the locking hole, a through opening is provided at the position where the connecting piece is connected to the strut, the strut is inserted into the inner side of the through opening, and the middle part of the locking rivet rod is passed through the inner side of the strut. The opening of the locking hole allows the connection between the fixed splint and the strut to become a detachable connection mode. When the strut or splint is damaged, it can be replaced, thereby improving the utilization rate of parts and reducing cost consumption.

[0010] Preferably, a pre-tensioning spring is fixed at the position where the pre-tensioning rod is connected to the support rod, and the other end of the pre-tensioning spring abuts against the inner wall of the chuck. The bottom of the pre-tensioning rod is elastically connected to the inside of the chuck by a pre-tensioning spring, so that the pre-tensioning rod can push the pre-tensioning member through the thrust of the pre-tensioning spring, so that the pre-tensioning member can push the movable splint to clamp the wood.

[0011] Preferably, the preload member includes an anti-slip rod and a threaded rod. The anti-slip rod is embedded and penetrated inside the preload member. The threaded rod is threadedly screwed onto the inside of the preload member. The anti-slip rod is connected to the inside of the preload member, so that the preload member can be disassembled from the anti-slip rod. After the threaded rod or the preload member is damaged, it can be disassembled and replaced.

[0012] Preferably, a rivet hole is provided at the position where the support rod is connected to the connecting piece, the locking rivet rod is inserted into the inner side of the rivet hole, one end of the limit buckle is rotatably connected to a tightening knob, and the rivet hole at the end of the support rod allows the connection between the support rod and the fixed splint to be disassembled, which is convenient for replacing damaged parts, and the tightening torque connected to one end of the limit buckle can drive the two sides of the limit buckle to retract and expand through its own rotation, thereby completing the tightness adjustment of the limit buckle itself.

[0013] Preferably, the distance between the right side of the support rod and the rotating universal seat is greater than the lateral length of the preload rod.

[0014] Compared with the related art, the upgraded parallel clamp provided by the utility model has the following beneficial effects:

[0015] 1. A chuck is connected to the lower end of the movable clamping plate of the present utility model, which is used to increase the elastic thrust and oblique limit for the fixed movable clamping plate, so that the movable clamping plate can have a continuous and uninterrupted thrust during the clamping of wood, thereby ensuring the clamping stability of the parallel clamp for wood and improving the shaping accuracy of the wood.

[0016] 2. The chuck internally has a pre-tightening member threadedly connected to a pre-tightening rod. The rotation of the pre-tightening member can drive the movement of the pre-tightening rod, so that the spring pushing against the bottom of the other end of the pre-tightening rod applies a thrust to the pre-tightening rod, thereby enabling the movable clamping plate to have an elastic thrust after being fixed, maintaining the elastic clamping force between the clamping plates. At the same time, the pre-tightening rod can form an oblique limit with the support rod to prevent the movable clamping plate from moving, directly completing the clamping of the item by the two clamping plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a preferred embodiment of an upgraded parallel clamp provided by the present utility model;

[0018] Figure 2 is Figure 1 a schematic exploded structural diagram of the position of the clamping plate shown;

[0019] Figure 3 is Figure 2 a schematic exploded structural diagram of the structure shown.

[0020] Reference numerals in the figure: 1, fixed clamping plate; 2, movable clamping plate; 3, chuck; 4, support rod; 5, limit buckle; 11, right combination piece; 12, left combination piece; 13, connecting piece; 131, locking hole; 132, locking rivet rod; 133, through hole; 14, first horizontal patch; 15, second horizontal patch; 31, pre-tightening rod; 32, pre-tightening member; 33, rotating universal joint; 34, pre-tightening spring; 321, anti-slip rod; 322, threaded rod; 41, rivet hole; 51, tightening knob. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] The following describes in detail the specific implementation of the present utility model with reference to specific embodiments.

[0023] Please refer to the attached Figures 1-3 , the upgraded parallel clamp provided by the embodiment of the present utility model, the upgraded parallel clamp includes:

[0024] A fixed splint 1 is divided into a left assembly piece 12 and a right assembly piece 11. The double assembly piece design of the fixed splint 1 allows the internal structure of the fixed splint 1 to be disassembled and replaced, thereby improving the utilization rate of spare parts of the fixed splint 1 and reducing the maintenance cost of the damaged fixed splint 1. A connecting piece 13 is provided between the left assembly piece 12 and the right assembly piece 11. The left assembly piece 12 and the right assembly piece 11 are respectively connected to both sides of the connecting piece 13. Symmetrical first horizontal patches 14 are fixed on the upper and lower sides of the left assembly piece 12 and the right assembly piece 11.

[0025] A locking hole 131 is formed at one end of the connecting piece 13, a locking rivet rod 132 is passed through the inner side of the locking hole 131, and a through hole 133 is formed on the side of the connecting piece 13 where the locking hole 131 is formed. The design of the locking hole 131 and the locking rivet rod 132 allows the fixing splint 1 to have a disassembly function during installation and assembly, and the spare parts can be disassembled, assembled and replaced.

[0026] The movable splint 2 is also divided into two left and right pieces, which is convenient for replacement of spare parts of the movable splint 2 and assembly during production. A second horizontal patch 15 is connected to one side of the movable splint 2 close to the fixed splint 1 and is arranged horizontally with the surface of the fixed splint 1.

[0027] The chuck 3 is connected to the side of the movable splint 2 away from the fixed splint 1, and a pre-tightening rod 31 is slidably provided on the inner side of the chuck 3, and a pre-tightening member 32 is vertically penetrated inside the end of the pre-tightening rod 31 located on the outer side of the chuck 3, and the position where the pre-tightening member 32 is connected to the pre-tightening rod 31 is threadedly screwed on the inner side of the pre-tightening rod 31, and one end of the pre-tightening member 32 is limitedly connected to a rotating universal seat 33, and the end of the rotating universal seat 33 away from the pre-tightening member 32 is embedded and rotated on the inner side of the movable splint 2, and a pre-tightening spring 34 is fixed on the end of the pre-tightening rod 31 located inside the chuck 3, and the other end of the pre-tightening spring 34 is fixed on the inner wall of the chuck 3.

[0028] The design of the chuck 3 is such that when the movable splint 2 and the fixed splint 1 clamp the wood, the pre-tightening member 32 can be rotated to drive the pre-tightening rod 31 to slide inside the chuck 3. When the pre-tightening rod 31 slides inside the chuck 3, pressure is applied to the pre-tightening spring 34, so that the pre-tightening rod 31 has a certain elastic driving force. When the pre-tightening member 32 is pushed by the force of the spring, the end of the pre-tightening member 32 connected to the movable splint 2 will apply a thrust to the movable splint 2, so that the movable splint 2 always has an elastic driving force to maintain the tightness of the clamping.

[0029] It should be noted that the distance between the right side of the support rod 4 and the rotating universal seat 33 is greater than the lateral length of the preload rod 31. In a natural state, the lower end of the preload rod 31 is inclined toward the support rod 4 and pressed against the support rod 4, forming a large friction force, which can prevent the movable splint 2 from sliding on the support rod 4.

[0030] When it is necessary to adjust the distance between the movable clamping plate 2 and the fixed clamping plate 1, pull the pre-tightening member 32 to rotate away from the support rod 4 with the universal joint 33 as the center. The pre-tightening rod 31 moves away from the support rod 4. At this time, the pre-tightening member 32 can be pulled to drive the movable clamping plate 2 to slide on the support rod 4. When the position is appropriate, release the pre-tightening member 32, and the position of the movable clamping plate 2 is fixed.

[0031] Support rod 4, a riveting hole 41 is opened at one end of the support rod 4. The opening of the riveting hole 41 at the end of the support rod 4 enables the support rod 4 to be detachably connected to the fixed clamping plate 1, facilitating disassembly during assembly and maintenance. One end of the support rod 4 with the riveting hole 41 penetrates inside the through hole 133, and the fixed riveting rod is inserted inside the locking hole 131 and the riveting hole 41 to connect the fixed clamping plate 1 and the support rod 4.

[0032] It should be noted that: a tooth block is provided in the middle of the locking riveting rod 132. When connecting the fixed clamping plate 1 and the support rod 4, the tooth block will engage with the inner sides of the locking hole 131 and the riveting hole 41, thus ensuring the stability after connection.

[0033] Limit buckle 5, the limit buckle 5 is connected to one end of the support rod 4. One end of the limit buckle 5 is rotatably connected with a tightening knob 51. The design of the limit buckle 5 can limit the maximum effective moving distance of the movable clamping plate 2 during the movement of the movable clamping plate 2. Tightening the tightening knob 51 can prevent the displacement of the limit buckle 5.

[0034] Usage process:

[0035] When clamping and fixing wood, hold the pre-tightening member 32 and push the movable clamping plate 2 to make the pre-tightening rod 31 parallel to the support rod 4, then the movable clamping plate 2 can be moved. At this time, the movable clamping plate 2 slides on the outside of the support rod 4 to clamp the wood. Then, the pre-tightening rod 31 of the chuck 3 can be used to simply clamp and fix the wood. At this time, rotate the pre-tightening member 32, and the pre-tightening rod 31 can be used to press the pre-tightening spring 34 to make the movable clamping plate 2 apply a thrust to the wood, ensuring the clamping stability of the parallel clamp for the wood.

[0036] It should be noted that: this upgraded parallel clamp can further improve the clamping stability of the wood. At the same time, to avoid the clamping deformation of the wood caused by the elastic clamping force, the pre-tightening member 32 can be rotated according to the required clamping force or the maximum contraction distance of the clamping, so that the pushing distance applied by the pre-tightening spring 34 to the pre-tightening member 32 has an accurate positioning, thus ensuring the clamping shaping accuracy of the wood.

[0037] When expanding and fixing wood, the movable clamping plate 2 is reversely installed on the outside of the support rod 4, and the above operations can be synchronized.

[0038] It should be noted that: rivet holes can also be provided at one end of the strut 4 away from the fixed clamping plate 1. By using a connecting piece to connect the two struts 4 end to end, the length of the parallel clamp can be extended, facilitating the clamping of larger-sized items.

[0039] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated herein.

[0040] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. The upgraded parallel clamp is characterized in that, It includes a fixed splint (1), on one side of the fixed splint (1) there is a movable splint (2), a support rod (4) which is fixedly connected is penetrated through the side of the fixed splint (1) close to the movable splint (2), the movable splint (2) is sleeved and slid on the outside of the support rod (4), on the side of the movable splint (2) facing away from the fixed splint (1) there is a chuck (3) connected, the inner side of the chuck (3) includes a pre-tightening rod (31), the pre-tightening rod (31) is slidably sleeved on the outside of the support rod (4), the other end of the pre-tightening rod (31) is threadedly connected with a pre-tightening member (32), the pre-tightening member (32) is cross-perpendicularly connected to the pre-tightening rod (31), one end of the pre-tightening member (32) is connected with a rotating universal joint (33), the end of the rotating universal joint (33) facing away from the pre-tightening member (32) is rotationally limited on the inner side of the outer wall of the movable splint (2), a limit buckle (5) is slidably sleeved on the outside of the support rod (4), and the limit buckle (5) is located at the end of the chuck (3).

2. The upgraded parallel clamp according to claim 1, wherein The fixed splint (1) is divided into a right combination piece (11) and a left combination piece (12), a connecting piece (13) is connected between the right combination piece (11) and the left combination piece (12), the support rod (4) is vertically inserted into the inner side of the connecting piece (13), symmetric first horizontal patches (14) are fixed on the upper and lower surfaces of the right combination piece (11) and the left combination piece (12), and a second horizontal patch (15) is fixed on the side of the movable splint (2) close to the first horizontal patch (14).

3. The upgraded parallel clamp according to claim 2, wherein A locking hole (131) is opened at the position where the connecting piece (13) connects the support rod (4), a locking rivet rod (132) is penetrated through the inner side of the locking hole (131), a through hole (133) is opened at the position where the connecting piece (13) connects the support rod (4), the support rod (4) is inserted into the inner side of the through hole (133), and the middle part of the locking rivet rod (132) is penetrated through the inner side of the support rod (4).

4. The upgraded parallel clamp according to claim 1, wherein, A pre-tightening spring (34) is fixed at the position where the pre-tightening rod (31) is connected to the support rod (4), and the other end of the pre-tightening spring (34) abuts against the inner wall of the chuck (3).

5. The upgraded parallel clamp according to claim 3, wherein A rivet hole (41) is opened at the position where the support rod (4) is connected to the connecting piece (13), the locking rivet rod (132) is penetrated through the inner side of the rivet hole (41), and one end of the limit buckle (5) is rotatably connected with a tightening knob (51).

6. The upgraded parallel clamp according to claim 4, wherein The pre-tightening member (32) includes an anti-slip rod (321) and a threaded rod (322), the anti-slip rod (321) is embedded and penetrated through the inner side of the pre-tightening member (32), and the threaded rod (322) is threadedly connected to the inner side of the pre-tightening rod (31).

7. The upgraded parallel clamp according to claim 4, wherein The distance between the right side of the support rod (4) and the rotating universal joint (33) is greater than the transverse length of the pre-tightening rod (31).

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