Holding and pressing type grease gun

Abstract

The utility model provides a holding type grease gun which comprises a barrel body, an end cover and a grip, the end cover is fixedly arranged at one end of the barrel body and provided with a grease outlet channel communicating the inside and the outside of the barrel body, the grip is connected with a grease pushing rod, and the grip moves relative to the end cover when being subjected to holding acting force and pushes media in the grease outlet channel out of the barrel body through the grease pushing rod. The oil pushing rod is connected with an adjusting shaft, the grip is provided with a plurality of positioning parts, the positioning parts are arranged at intervals in the axis direction of the oil pushing rod, and a plurality of adjusting gears with different sliding strokes of the oil pushing rod are formed when the adjusting shaft is locked and matched with different positioning parts. The holding and pressing type grease gun has the advantages that the holding and pressing type grease gun can be operated by one hand, the gear adjusting capacity is achieved, the stroke of the grease pushing rod can be correspondingly adjusted, and the capacity of the holding and pressing type grease gun adapting to different occasions is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to grease gun technical field, especially a kind of grip pressure type grease gun. BACKGROUND

[0002] The size and position of the pistol grip handle grease gun are carefully designed, and the handle can be operated by one hand. The application of the grease gun has various occasions, and in some occasions, the user needs to apply as much lubricant as possible to the grease fitting in each stroke, and in some other occasions, the grease gun needs to allow the lubricant to be provided under greater pressure, such as when the grease fitting is frozen, which hinders the flow of lubricant, or when the lubricated bearing has tight tolerances that require greater pressure to inject lubricant. The conventional pistol grip handle grease gun has only one gear, and its versatility is poor for various occasions.

[0003] In Chinese patent documents, patent No. CN201020291351X discloses a dual-purpose grease gun, which comprises an oil cylinder and an end cover arranged on the oil cylinder. A handle and a pressing handle are arranged on one side of the end cover. When operated by one hand, the handle and the pressing handle can be held simultaneously, and the grease cavity can be operated by gripping and pressing. An activity handle is slidably arranged on the pressing handle, and a positioning assembly is arranged on the activity handle to position the activity handle. According to different working environments and requirements, the length of the force arm of the pressing handle can be changed by adjusting the position of the activity handle relative to the pressing handle, so that the user can choose one-handed or two-handed operation mode.

[0004] However, the dual-purpose disclosed in the above-mentioned prior art only changes the operation mode, and does not change the deepest pushing position of the oil pushing rod for pushing the medium in the oil cylinder out of the end cover. That is, even if the operation mode is changed from one hand to two hands, the oil output cannot be reliably affected.

[0005] Therefore, it is necessary to design a grip pressure type grease gun with multiple gears that can be operated by one hand and has strong adaptability. UTILITY MODEL CONTENTS

[0006] The utility model discloses a grip pressure type grease gun that can be operated by one hand and has the ability to adjust gears, can correspondingly adjust the stroke of the oil pushing rod, and thus improve the adaptability of the grip pressure type grease gun to different occasions.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions.

[0008] The application discloses a squeeze type butter gun which comprises a barrel, an end cover and a handle, the end cover is fixed at one end of the barrel and is provided with an oil outlet channel for connecting the inside and outside of the barrel, the handle is connected with an oil pushing rod, the handle moves relative to the end cover when being squeezed and pushes the medium in the oil outlet channel out of the barrel through the oil pushing rod, the oil pushing rod is connected with an adjusting shaft, the handle is provided with a plurality of positioning parts, the positioning parts are spaced in the axis direction of the oil pushing rod, and the adjusting shaft is locked with different positioning parts to form a plurality of adjusting gears with different sliding strokes of the oil pushing rod.

[0009] The application drives the oil pushing rod to slide in the end cover by squeezing the handle, and then pushes the medium out of the barrel, thereby achieving the technical purpose of increasing the lubricant. The handle can be operated by one hand through squeezing operation, and the operation is convenient. The handle is provided with a plurality of positioning parts, and the oil pushing rod has different sliding strokes when being matched with different positioning parts, so that the pushing pressure and the pushing volume of the medium by the oil pushing rod are changed when being pressed once, and the adaptability of the squeeze type butter gun to different application occasions is improved. The adjusting gears of the butter cavity are realized by the positioning parts, and the technical effects corresponding to each gear can be determined in the design stage, so that the user can select the appropriate gear according to the application occasion.

[0010] As preferred, the handle comprises a first handle and a second handle, the first handle is connected with the end cover, the second handle is rotationally connected with the first handle or the end cover through a connecting rod, the operation end of the first handle and the operation end of the second handle are oppositely arranged, and the positioning parts are arranged on the second handle. One structure form of the handle is that the operation end of the first handle and the operation end of the second handle are held at the same time when the handle is operated, and the relative movement of the second handle and the first handle can be realized by applying the squeezing force, the positioning parts are arranged on the second handle, the second handle and the positioning parts move relative to the end cover when the handle is squeezed, the positioning parts drive the oil pushing rod to move together, the pushing of the oil pushing rod is realized, and the handle can be operated by one hand, and the operation is convenient.

[0011] As preferred, the positioning parts are provided with a guide path to realize the sliding adjustment of the adjusting shaft between different positioning parts. When the butter gun needs to change the adjusting gear, the position switching between different positioning parts can be realized by sliding the adjusting shaft along the guide path, and the gear adjustment is convenient.

[0012] As preferred, the second handle is provided with a mounting plate, the positioning parts and the guide path are arranged on the mounting plate, the mounting plate is protrudingly arranged from the second handle to the first handle and limits the shortest distance between the second handle and the end cover when the mounting plate and the end cover abut against each other. The mounting plate is used for mounting the positioning parts and the guide path, provides the mounting space for the adjusting shaft, and limits the shortest distance between the second handle and the end cover, that is, no matter where the connecting shaft is arranged, the second handle can move to the abutment between the mounting plate and the end cover at most, so that the pushing stroke of the oil pushing rod can be determined by the position of the positioning parts on the mounting plate, and the oil outlet pressure or the oil outlet volume of the oil pushing rod is conveniently controlled.

[0013] As preferred, the guide path is a linear slot or an arc slot, the guide path slot width is less than the positioning part lateral dimension, the adjusting shaft includes a sliding part matched with the guide path and a locking part matched with the positioning part. Since the guide path slot width is less than the positioning part lateral dimension, when the locking part is matched with the positioning part, the adjusting shaft cannot be directly moved from the guide path, the position of the adjusting shaft needs to be adjusted so that the sliding part is located in the positioning part, the sliding part can be matched with the guide path, the sliding displacement of the adjusting shaft is realized, and the reliability of the butter gun gear adjustment is ensured.

[0014] As preferred, the adjusting shaft includes an adjusting end, a sliding part and a locking part arranged in sequence, the sliding part is matched with the guide path dimension, the locking part is matched with the positioning part shape and dimension, the locking part dimension is greater than the sliding part, and the sliding part is provided with an elastic member to push the adjusting shaft to the adjusting end by elastic force to maintain the matching of the locking part and the positioning part. One structure form of the adjusting shaft, under the elastic force of the elastic member, the locking part and the positioning part can maintain relatively stable matching, when the gear needs to be adjusted and changed, the adjusting end needs to be pressed to make the adjusting shaft slide against the elastic force of the elastic member, at this time, the locking part is separated from the positioning part, and then the sliding part can be matched with the guide path to realize the position switching of the adjusting shaft in different positioning parts, and the stability of each adjusting gear after being positioned is high.

[0015] As preferred, the locking part is provided with a convex part or a concave part to limit the rotation of the locking part. The shapes and dimensions of the locking part and the positioning part are both matched, that is, after the convex part or the concave part is arranged on the locking part, a shape matched with the convex part or the concave part is arranged on the positioning part, the locking part cannot rotate, the adjusting shaft cannot move radially and rotate after being installed on the positioning shaft, and the positioning reliability is high.

[0016] As preferred, the locking part is rotatably arranged in the positioning part, the locking part is provided with a notch to form a sliding surface, and the positioning part is rotated to make the sliding surface match the guide path. To unlock the locking part from the positioning part, the locking part needs to be rotated first, the locking part can only slide along the guide path when the sliding surface is matched with the guide path, and the positioning part and the locking part have high reliability after being matched.

[0017] As preferred, the handle or the adjusting shaft is provided with a reset member, and the handle moves relative to the end cover against the elastic force of the reset member when the handle is gripped. The reset member provides elastic force to the handle, so that the handle has a movement trend opposite to the movement direction when the handle is gripped, and provides space for the medium in the oil outlet channel when the handle is not gripped, so as to ensure the continuous pushing of the oil when the handle is continuously gripped.

[0018] As preferred, the end cover is provided with a storage groove at one end towards the inside of the barrel, the oil outlet channel comprises an inlet end, a push oil rod hole and an outlet end arranged in sequence, the inlet end is connected with the storage groove, the push oil rod is in sliding connection with the push oil rod hole, and the push oil rod pushes the medium out from the inlet end to the outlet end along the push oil rod hole during work. In one implementation form of the end cover, the storage groove is arranged to keep more medium near the inlet end of the oil outlet channel, and the push oil rod has reliable oil outlet effect.

[0019] The utility model has the advantages of: 1. One hand can be held and pressed to operate, and operation is convenient; 2. Multiple adjustment gears are provided, the butter gun can adjust the oil outlet mode according to the occasion, and the butter gun has high universality; 3. The adjustment gears are realized by positioning parts, and the corresponding functions of the adjustment gears are clear, which facilitates the practical application of the butter gun. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structure schematic view of a holding and pressing type butter gun disclosed by one embodiment of the utility model.

[0021] Figure 2 is a structure schematic view of a side surface of a holding and pressing type butter gun disclosed by one embodiment of the utility model.

[0022] Figure 3 is Figure 2 is a sectional view of A-A in figure

[0023] Figure 4 is a structure schematic view of the inside structure of a handle and adjacent structure in a holding and pressing type butter gun disclosed by one embodiment of the utility model.

[0024] Figure 5 is a structure schematic view of the inside structure of a handle and adjustment shaft cooperation in a holding and pressing type butter gun disclosed by one embodiment of the utility model.

[0025] Figure 6 is Figure 5 is a structure schematic view of the inside structure of a handle and adjustment shaft cooperation in a holding and pressing type butter gun after switching adjustment gears disclosed by the embodiment shown in figure

[0026] Figure 7 is a structure schematic view of the inside structure of a second handle and adjustment shaft cooperation in a holding and pressing type butter gun disclosed by one embodiment of the utility model.

[0027] Figure 8 is a structure schematic view of the inside structure of a second handle and adjustment shaft cooperation in a holding and pressing type butter gun disclosed by one embodiment of the utility model.

[0028] Figure 9 is Figure 8The structure diagram of the second handle and the adjusting shaft in the embodiment of the utility model is shown.

[0029] Figure 10 The structure diagram of the second handle and the adjusting shaft in the embodiment of the utility model is shown.

[0030] Figure 11 The structure diagram of the second handle and the adjusting shaft in the embodiment of the utility model is shown.

[0031] In the figure: the barrel body 1;

[0032] The end cover 2, the storage tank 21, the oil outlet channel 22, the inlet end 221, the oil pushing rod hole 222, the outlet end 223, the oil outlet hole 224, the oil supplement hole 225;

[0033] The piston 3;

[0034] The tension member 4;

[0035] The cap 5;

[0036] The oiling spring 6;

[0037] The handle 7, the first handle 71, the second handle 72, the sharp corner 721, the mounting plate 722, the positioning part 723, the first positioning part 7231, the second positioning part 7232, the guide path 724, the connecting rod 73, the reset member 74, the hook plate 75, the matching pin 76;

[0038] The oil pushing rod 8, the adjusting shaft 81, the adjusting end 811, the sliding part 812, the locking part 813, the sliding surface 8130, the convex part 8131, the elastic member 814, the protective sleeve 815. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the embodiment of the utility model will be described clearly and completely below by combining the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0040] The terms "include" and "have" and any variation thereof in the specification and claims of the utility model are intended to cover the non-exclusive inclusion, for example, the method or product including a series of technical features, not limited to the clearly listed technical features, and can also include other technical features not clearly listed which can be included in the method or product.

[0041] In the description of the utility model, it is understood that the technical features defined by the terms "first", "second" and the like with the concept of order, only in order to clearly describe the defined technical features, make the defined technical features and other technical features can be clearly distinguished, and do not represent the actual implementation of such naming, therefore, it can not be understood as a limitation of the utility model.

[0042] Embodiment 1

[0043] A squeeze type butter gun, as shown in Figures 1 to 11 , comprising a barrel 1, an end cover 2 and a handle 7, the end cover 2 is fixedly arranged at one end of the barrel 1 and is provided with an oil outlet channel 22 communicating inside and outside the barrel 1, the handle 7 is connected with a push oil rod 8, the handle 7 moves relative to the end cover 2 when subjected to a squeezing force and pushes the medium in the oil outlet channel 22 out to the outside of the barrel 1 through the push oil rod 8, the push oil rod 8 is connected with an adjusting shaft 81, the handle 7 is provided with a plurality of positioning portions 723, the plurality of positioning portions 723 are spaced apart in the axial direction of the push oil rod 8, and a plurality of adjusting gears with different sliding strokes of the push oil rod 8 are formed when the adjusting shaft 81 is locked with different positioning portions 723.

[0044] The application drives the push oil rod 8 to slide in the end cover 2 by squeezing the handle 7, and then pushes the medium out to the barrel 1, thereby achieving the technical purpose of adding lubricant to the target position. The medium is usually grease, and the barrel 1 is used to store the medium. For example, Figure 11 , a piston 3 is arranged to slide in the barrel 1, the medium is arranged between the piston 3 and the end cover 2 inside the barrel 1, a tension member 4 is connected to the side of the piston 3 away from the end cover 2, and the tension member 4 is a pull rope or a chain. The end cover 2 is threadedly connected to one end of the barrel 1, and the other end of the barrel 1 is fixedly connected with a cap 5. The tension member 4 passes through the cap 5, and an oiling spring 6 abuts between the piston 3 and the cap 5. The oiling spring 6 provides the piston 3 with a spring force to move towards the end cover 2. When the grease is discharged from the oil outlet channel 22 of the end cover 2, the amount of grease between the end cover 2 and the piston 3 decreases, and the oiling spring 6 cooperates to push the piston 3 upwards to reduce the space between the end cover 2 and the piston 3, thereby ensuring reliable oiling of the oil outlet channel 22. The effect of adding grease to the butter gun is not affected by the air sucked into the barrel 1. When it is necessary to supplement the grease in the barrel 1, the tension member 4 is only pulled out of the barrel 1. During the movement of the piston 3, the space between the piston 3 and the end cover 2 increases, and the negative pressure effect will suck the grease into the barrel 1, thereby achieving the supplement of the grease.

[0045] The end cover 2 is integrated with the oil outlet channel 22, and the oil outlet channel 22 can be connected with a pipeline to realize oil outlet in different directions. For example, Figure 4In the shown scheme, the oil outlet channel 22 has two communication holes with the outside, either of which can be used as an oil outlet hole 224 for discharging the lubricating grease, and the other as a supplementary oil hole 225 for supplementing the lubricating grease in the barrel body 1. Generally, for the convenience of discharging the lubricating grease, the through hole in the axial direction of the oil pushing rod 8 is used as the oil outlet hole 224, and the through hole at the end of the end cap 2 is used as the supplementary oil hole 225.

[0046] The handle 7 is the operating part of the grease gun, and when the grease gun needs to squeeze out the medium, the handle 7 is pressed, and the oil pushing rod 8 connected to the handle 7 slides in the oil outlet channel 22. The inlet end 221 of the oil outlet channel 22 is closer to the handle 7 than the outlet end 223 of the oil outlet channel 22, that is, the oil pushing rod 8 moves from the inlet end 221 to the outlet end 223 of the oil outlet channel 22 during the pushing process, so as to squeeze out the medium from the oil outlet channel 22, and under the pressure of the oiling spring 6, the medium continuously enters the oil outlet channel 22 from the inlet end 221, so that the grease gun effectively discharges oil each time the handle is pressed. The handle 7 is manually pressed and operated, which can be completed by one hand, and the operation is convenient.

[0047] The handle 7 is provided with a plurality of positioning portions 723, and the oil pushing rod 8 has different sliding strokes when cooperating with different positioning portions 723, so that the pushing pressure and the pushing volume of the medium by the oil pushing rod 8 are changed during single pressing, thereby improving the adaptability of the grease gun to different application occasions. For example, when the lubricating grease joint is frozen to hinder the flow of the lubricating agent, or when the bearing to be lubricated has a tight tolerance so that more pressure is required to inject the lubricating agent, the pressure mode corresponding to the positioning portion 723 far from the end cap 2 can be used to adjust the gear position of the grease gun, and the larger stroke of the pressing handle 7 only squeezes out a smaller unit of lubricating agent, which is beneficial to overcome the resistance. For another example, when a larger volume of lubricating agent needs to be injected at one time, the volume mode corresponding to the positioning portion 723 close to the end cap 2 can be used to adjust the gear position of the grease gun, and the single pressing of the handle 7 can squeeze out a larger volume of lubricating agent, thereby ensuring the lubricating effect.

[0048] The adjustment gears of the grease cavity are realized by the positioning portions 723, and the technical effects corresponding to each gear can be clearly defined in the design stage, so that the user can select the appropriate gear according to the use occasion.

[0049] Embodiment 2

[0050] A pressing type grease gun, such as Figures 1 to 6As shown, it comprises a barrel 1, an end cover 2 and a handle 7, the end cover 2 is fixed at one end of the barrel 1 and is provided with an oil outlet channel 22 for communication between the inside and outside of the barrel 1, the handle 7 is connected with a push oil rod 8, the handle 7 moves relative to the end cover 2 when subjected to a pressing force and pushes the medium in the oil outlet channel 22 out of the barrel 1 through the push oil rod 8, the outer end of the push oil rod 8 is rotationally connected with an adjusting shaft 81, the handle 7 is provided with a plurality of positioning portions 723, the plurality of positioning portions 723 are spaced apart in the axial direction of the push oil rod 8, and the adjusting shaft 81 and the different positioning portions 723 are locked together to form a plurality of adjusting gears with different sliding strokes of the push oil rod 8. In order to improve the greasing effect of the grease gun, the end cover 2 is provided with a storage tank 21 at the end facing the inside of the barrel 1, the oil outlet channel 22 comprises an inlet end 221, a push oil rod hole 222 and an outlet end 223 arranged in sequence, the inlet end 221 is an oil inlet hole connecting the push oil rod hole 222 and the storage tank 21, the inlet end 221 and the storage tank 21 are in an intersecting connection relationship, the push oil rod 8 is slidably connected with the push oil rod hole 222, the oil outlet hole 224 is located at the outlet end 223, and the push oil rod 8 pushes the medium from the inlet end 221 along the push oil rod hole 222 to the outlet end 223 when working, and the push oil rod 8 and the push oil rod hole 222 are tightly fitted to ensure the oil pushing effect of the push oil rod 8.

[0051] The adjusting shaft 81 is provided with a reset member 74, the reset member 74 is sleeved on the push oil rod 8 and abuts against the spring of the adjusting shaft 81 and the end cover 2, and the handle 7 moves relative to the end cover 2 by overcoming the elastic force of the reset member 74 when subjected to a pressing force. The reset member 74 provides an elastic force to the handle 7, so that the handle 7 has a movement tendency opposite to the movement direction when pressed, and the reset member 74 pushes the push oil rod 8 outward when not pressed, so as to provide space for the medium in the oil outlet channel 22 to enter, and ensure the continuous pushing when continuously pressed.

[0052] In the embodiment, the handle 7 comprises a first handle 71 and a second handle 72, the first handle 71 is fixedly connected with the end cover 2, the second handle 72 is connected with the first handle 71 through a connecting rod 73, the operation end of the first handle 71 and the operation end of the second handle 72 are oppositely arranged, and a positioning part 723 is arranged on the second handle 72. The two ends of the connecting rod 73 are rotatably connected with the first handle 71 and the second handle 72 respectively. When the second handle 72 is pressed, the second handle 72 has a sliding trend relative to the first handle 71, so that the positioning part 723 on the second handle 72 matched with the adjusting shaft 81 can be kept on the axis of the oil pushing rod 8, avoiding the interference of the rotation of the second handle 72 to the sliding of the oil pushing rod 8. When the handle 7 is operated, the operation end of the first handle 71 and the operation end of the second handle 72 are held at the same time, and the second handle 72 and the first handle 71 can be relatively moved by applying a holding force, the positioning part 723 is arranged on the second handle 72, when the handle 7 is held and pressed, the second handle 72 and the positioning part 723 move together relative to the end cover 2, the positioning part 723 drives the oil pushing rod 8 to move together, so as to realize the pushing out of the oil pushing rod 8. The handle 7 can be operated by one hand, and the operation is convenient.

[0053] In order to facilitate the switching and adjusting of the adjusting shaft 81 between different positioning parts 723, a guide path 724 is arranged between the positioning parts 723. When the grease gun needs to change the adjusting gear, the adjusting shaft 81 can be slid along the guide path 724 to realize the position switching between different positioning parts 723, and the gear adjusting is convenient. In the embodiment, the second handle 72 is provided with a mounting plate 722, the positioning part 723 and the guide path 724 are arranged on the mounting plate 722, the mounting plate 722 is protrudingly arranged from the second handle 72 to the first handle 71 and limits the shortest distance between the second handle 72 and the end cover 2 when the mounting plate 722 abuts against the end cover 2. The mounting plate 722 is used for mounting the positioning part 723 and the guide path 724, providing a mounting space for the adjusting shaft 81, and the mounting plate 722 limits the shortest distance between the second handle 72 and the end cover 2, that is, no matter which positioning part 723 the connecting shaft is arranged in, the second handle 72 can move to the mounting plate 722 and abut against the end cover 2 at most, so that the pushing stroke of the oil pushing rod 8 can be determined by the position of the positioning part 723 on the mounting plate 722, and the oil outlet pressure or the oil outlet volume of the oil pushing rod 8 can be conveniently controlled.

[0054] In the embodiment, the positioning portions 723 are provided with two, and the guide path 724 between the two positioning portions 723 is a line segment groove, the groove width of the guide path 724 is smaller than the transverse dimension of the positioning portion 723, and the adjusting shaft 81 comprises a sliding portion 812 matched with the guide path 724 and a locking portion 813 matched with the positioning portion 723. Since the groove width of the guide path 724 is smaller than the transverse dimension of the positioning portion 723, when the locking portion 813 is matched with the positioning portion 723, the adjusting shaft 81 cannot be directly moved from the guide path 724, and the position of the adjusting shaft 81 needs to be adjusted so that the sliding portion 812 is located in the positioning portion 723, and then the sliding portion 812 can be matched with the guide path 724 to realize the sliding displacement of the adjusting shaft 81, thereby ensuring the reliability of the butter gun gear adjustment. In the embodiment, the adjusting shaft 81 comprises the adjusting end 811, the sliding portion 812 and the locking portion 813 arranged in sequence, the sliding portion 812 is matched with the guide path 724 in size gap, and the shape of the sliding portion 812 is cylindrical. The shape of the locking portion 813 is the same as that of the positioning portion 723, the shape of the locking portion 813 is cylindrical, the shape of the positioning portion 723 is a circular hole, the diameter of the locking portion 813 and the diameter of the positioning portion 723 are matched in size gap, the diameter of the locking portion 813 is larger than the diameter of the sliding portion 812, and the elastic member 814 is arranged on the sliding portion 812 to push the adjusting shaft 81 to the adjusting end 811 by elastic force to maintain the matching of the locking portion 813 and the positioning portion 723. Specifically, the adjusting end 811 is a screw for screwing the adjusting shaft 81, the elastic member 814 is a spring, and a protective sleeve 815 is arranged outside the spring to improve the safety of the spring arrangement. Under the action of the elastic force of the elastic member 814, the locking portion 813 and the positioning portion 723 can maintain relatively stable matching, when it is necessary to adjust the gear to change, the adjusting end 811 needs to be pressed to make the adjusting shaft 81 slide against the elastic force of the elastic member 814, at this time, the locking portion 813 is separated from the positioning portion 723, and then the sliding portion 812 can be matched with the guide path 724 to realize the position switching of the adjusting shaft 81 in different positioning portions 723, and the stability of each adjusting gear after being positioned is high.

[0055] The two positioning portions 723 make the butter gun have two adjusting gears of pressure mode and volume mode. The line segment groove is arranged eccentrically on the same side of the two positioning portions 723 and is provided with a round corner transition, which not only enhances the reliability of the matching of the adjusting shaft 81 and the positioning portion 723, but also facilitates the movement of the adjusting shaft 81. Figure 5 and Figure 6 As shown in the two positioning portions 723 are respectively a first positioning portion 7231 and a second positioning portion 7232, wherein the first positioning portion 7231 is closer to the end cover 2 than the second positioning portion 7232, and Figure 5In the shown state, the adjusting shaft 81 is arranged in the second positioning part 7232, at this time, the shortest distance between the mounting plate 722 edge and the end cover 2 is small, the rotating distance of the second handle 72 is small, the upper end of the second handle 72 is provided with a sharp corner 721 of the protruding connecting rod 73, the maximum outward rotating angle of the second handle 72 is limited by the sharp corner 721. The side of the first handle 71 towards the barrel 1 is provided with a wavy arc surface, facilitating finger gripping, because the shortest distance between the mounting plate 722 of the second handle 72 and the end cover 2 is small, the second handle 72 can be gripped and pressed at high frequency and fast, providing large output pressure to the medium, suitable for application when the medium resistance is large. While in Figure 6 In the shown state, the adjusting shaft 81 is arranged in the first positioning part 7231, at this time, the shortest distance between the mounting plate 722 edge and the end cover 2 is large, the second handle 72 can be rotated to the barrel 1 direction with large distance, thereby pushing the oil pushing rod 8 to the outlet end 223 of the oil outlet channel 22 more Figure 5 State, realizing larger volume of medium extrusion at a time.

[0056] In the embodiment, the oil pushing rod 8 and the oil outlet channel 22 are Figure 3 The hook plate 75 is not shown in Figure 2 The hook plate 75 is arranged on the first handle 71 in rotation, the second handle 72 is provided with a cooperating pin 76, the hook plate 75 can be hooked on the cooperating pin 76, when the hook plate 75 is hooked on the cooperating pin 76, the oil pushing rod 8 blocks the oil pushing rod hole 222 between the inlet end 221 and the outlet end 223 of the oil outlet channel 22, preventing the grease gun from leaking.

[0057] As a simple replacement of the above-mentioned scheme, the number of the positioning parts 723 is three, four, etc.

[0058] Embodiment 3

[0059] A gripping type grease gun, as shown in Figure 7 The difference between embodiment 3 and embodiment 2 is only that the guide path 724 is an arc groove.

[0060] Embodiment 4

[0061] A gripping type grease gun, as shown in Figure 8 and Figure 9 The difference between embodiment 4 and embodiment 2 is only that the locking part 813 is arranged in rotation in the positioning part 723, the locking part 813 is provided with a notch to form a sliding surface 8130, the locking part 813 is rotated in the positioning part 723 to make the sliding surface 8130 cooperate with the guide path 724. In the embodiment, the notch is arranged in a plane, making the cross-sectional shape of the position of the sliding surface 8130 be D-shaped, to unlock the locking part 813 from the positioning part 723, the notch of the adjusting shaft 81 shown in Figure 8 is rotated to face the adjusting shaft 81 shown in Figure 9The regulating shaft 81 is shown in the gap towards the adjustment. The locking portion 813 can slide along the guide path 724 when the sliding surface 8130 cooperates with the guide path 724, and the locking portion 813 and the positioning portion 723 have high reliability after cooperation.

[0062] Further, because the locking portion 813 can be directly rotated in the positioning portion 723 to achieve unlocking in the present embodiment, as another implementation of the above scheme, the sliding portion 812 and the locking portion 813 have the same structure and size and are not provided with the elastic member 814.

[0063] Embodiment 5

[0064] A squeeze-type butter gun, as shown in Figure 10 The difference between embodiment 5 and embodiment 2 is only that the locking portion 813 is provided with a convex portion 8131 to limit the rotation of the locking portion 813. Specifically, the locking portion 813 is provided with two convex tooth-shaped convex portions 8131, which are circumferentially arranged around the axis of the locking portion 813. The shapes and sizes of the locking portion 813 and the positioning portion 723 are cooperatively arranged, that is, after the convex portion 8131 is arranged on the locking portion 813, the positioning portion 723 is provided with a shape cooperating with the convex portion 8131. The locking portion 813 cannot rotate, the regulating shaft 81 cannot move radially and rotate after being mounted on the positioning shaft, and the reliability of being in place is high. When unlocking is required, the cylindrical sliding portion 812 is pressed to cooperate with the positioning portion 723, and then the regulating shaft 81 can be moved along the guide path 724.

[0065] As a simple replacement of the above scheme, the locking portion 813 is a concave portion, and the corresponding transverse size of the locking portion 813 at the concave portion is still greater than the diameter of the sliding portion 812, which ensures that after the locking portion 813 is separated from the positioning portion 723, the sliding portion 812 can enter the positioning portion 723 and cooperate with the guide path 724 to slide.

[0066] Embodiment 6

[0067] A squeeze-type butter gun, as shown in Figure 11 The difference between embodiment 6 and embodiment 2 is that the shape of the locking portion 813 is gear-shaped, the end cover 2 is provided with a convex end portion for connecting the connecting rod 73, so that the two ends of the connecting rod 73 are rotatably connected to the end cover 2 and the second handle 72, respectively, and the second handle 72 is provided with a return member 74, which is a torsion spring acting on the second handle 72 and the connecting rod 73 at both ends.

Claims

1. A grip-type grease gun, comprising a barrel, an end cap, and a handle, wherein the end cap is fixed to one end of the barrel and has an oil outlet channel connecting the inside and outside of the barrel, and the handle is connected to a push rod; when the handle is subjected to gripping force, it moves relative to the end cap and pushes the medium in the oil outlet channel to the outside of the barrel through the push rod, characterized in that, The oil pushing rod is connected with an adjusting shaft, the handle is provided with a plurality of positioning portions, the positioning portions are spaced in the axial direction of the oil pushing rod, and the adjusting shaft and the different positioning portions are locked and matched to form a plurality of adjusting gears with different sliding stroke of the oil pushing rod.

2. A squeeze-type butter gun according to claim 1, wherein The handle comprises a first handle and a second handle, the first handle is connected with the end cover, the second handle is rotationally connected with the first handle or the end cover through a connecting rod, the operation end of the first handle and the operation end of the second handle are oppositely arranged, and the positioning portion is arranged on the second handle.

3. A squeeze-type butter gun according to claim 2, wherein The positioning portions are provided with a guide path to realize sliding adjustment of the adjusting shaft between the different positioning portions.

4. A squeeze-type butter gun according to claim 3, wherein The second handle is provided with a mounting plate, the positioning portion and the guide path are arranged on the mounting plate, the mounting plate is protrudingly arranged from the second handle to the first handle and limits the shortest distance between the second handle and the end cover when the mounting plate and the end cover abut.

5. A squeeze-type butter gun according to claim 4, wherein The guide path is a line segment groove or an arc groove, the groove width of the guide path is smaller than the transverse dimension of the positioning portion, the adjusting shaft comprises a sliding portion matched with the guide path and a locking portion matched with the positioning portion.

6. A squeeze-type butter gun according to claim 4, wherein The adjusting shaft comprises an adjusting end, a sliding portion and a locking portion arranged in sequence, the sliding portion is matched with the dimension of the guide path, the locking portion is matched with the shape and dimension of the positioning portion, the dimension of the locking portion is larger than that of the sliding portion, and the sliding portion is provided with an elastic member for pushing the adjusting shaft to the adjusting end by elastic force to maintain the cooperation between the locking portion and the positioning portion.

7. A squeeze-type butter gun according to claim 6, wherein The locking portion is provided with a convex portion or a concave portion to limit the rotation of the locking portion.

8. A squeeze-type butter gun according to claim 5, wherein The locking portion is rotationally arranged in the positioning portion, the locking portion is provided with a notch to form a sliding surface, and the locking portion rotates in the positioning portion to make the sliding surface cooperate with the guide path.

9. A squeeze-type butter gun according to any one of claims 1 to 8, characterised in that The handle or the adjusting shaft is provided with a reset member, and the handle moves relative to the end cover against the elastic force of the reset member under the gripping pressure.

10. A squeeze-action butter gun according to any one of claims 1 to 8, characterised in that, One end of the end cover towards the inside of the barrel body is provided with a storage groove, the oil outlet channel comprises an inlet end, an oil pushing rod hole and an outlet end arranged in sequence, the inlet end is connected with the storage groove, the oil pushing rod is slidably connected with the oil pushing rod hole, and the oil pushing rod pushes the medium from the inlet end to the outlet end along the oil pushing rod hole when working.

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